Ultralight boson particles have been predicted to solve problems in particle and high-energy physics and are compelling dark matter candidates. We develop algorithms and search for these conjectured ultralight bosons around black holes via gravitational-wave observations. 

This experiment will characterise dark matter detector material. Lowest levels of natural radioactivity in high purity samples will be analysed via ultra-senstive single atom counting using acclerator mass spectrometry.

Following a practical introduction to optical interferometry for gravitational wave detectors and simulation tools, this project will model the optical configuration to optimize detector performance against a number of possible predictions of the neutron star equation of state.

The event of two merging neutron stars, GW170817, was observed in gravitational waves and across the electromagnetic spectrum, opening a new era of multi-messenger astronomy. We work on following up electromagnetic counterparts to future detections of gravitational waves and are ready to contribute to the new science of multi-messenger astronomy. 

There is no lunar GPS so how will satellite orbits be determined for safety and efficiency in designing missions.

Radionuclides can serve as tracers and chronometers for environmental processes. The time scale for these clocks is set by the half-life of the respective radioisotope. Using accelerator mass spectrometry and decay counting this project aims investigate the chronology of the Early Solar System.

Investigate the properties of exotic nuclei and their impact on fundamental models and creation of the elements when stars explode. 

Thrusters for propulsion generally require nozzles but is this necessary in the vaccum of space?

Active plasma thrusters are needed for in orbit manouvers and for arranging constellations of satellites. 

In this project, we develop data analysis methods and analyse the gravitational-wave data collected by ground-based detectors like Advanced LIGO and Virgo to look for weak gravitational radiation from spinning neutron stars.

For gravitational-wave detections and analyses, the raw outputs from the gravitational-wave detectors need to be converted into analysable data through some calibration apparatus. This project investigates new techniques to improve calibration accuracy and precision and better integrate the calibration bias into astrophysical analyses. 

When two neutron stars collide, what is left behind? We develop methods and look for gravitational-wave signatures from the newborn remnant object after the collisions of binary neutron star systems.

In this project we investigate, through analytic calculation and simulation, the design and performance limits of a microfabricated quantum-ring atom gyroscope. This is a new design that builds on the quantum vortex gyroscope under development at ANU.

We apply the most advanced quantum-mechanical modeling to resolve electron motion in atoms and molecules on the atto-second (one quintillionth of a second) time scale.  Our theoretical modeling, based on a rigorous, quantitative description of correlated electron dynamics, provides insight into new physics taking place on the atomic time scale.

An optical quantum memory will capture a pulse of light, store it and then controllably release it. This has to be done without ever knowing what you have stored, because a measurement will collapse the quantum state. We are exploring a "photon echo" process to achieve this goal.

Antiparticles and antimatter have progressed from theory and science fiction to become an important and exciting area of pure and applied science. This fundamental atomic physics project will investigate how antimatter and matter interact by experimentally studying the interaction of positrons (the electron anti-particle) with trapped ultracold rubidium atoms.

This experimental project aims to create entangled states of ultracold helium atoms where the entanglement is between atoms of different mass. By manipulating the entangled pairs using laser induced Bragg transitions and measuring the resulting correlations, we will study how gravity affects mass-entangled particles.

Using methods of quantum many-body theory to describe elementary processes in atoms and molecules interacting with strong electromagnetic fields.

The project studies possibility of the coherent control (i.e. manipulating properties of a quantum system, such as charge density, levels populations, etc., using a suitably tailored laser pulse) for a quantum mechanical model of a molecule.

The idea of equilibration is ubiquitous throughout nature. Out-of-equilibrium dynamics – be it caused by a disturbance and subsequent “rethermalisation”, or by passing through a phase transition – is a difficult question to characterise. This project looks at both equilibration and phase transitions in a Bose-Einstein condensate of metastable helium atoms.

The Global Network of Optical Magnetometers for Exotic Physics (GNOME) uses precision atomic magnetometers to look new physics.  The concept is to have a global network of magnetometers looking for correlated magnetic field fluctuations that may be caused by strange, and unknown physics.

This is a multi-faceted project which can be adapted to students at the honours level and above. A number of possibilities exist to perform experiments directed towards improving the use of positrons in medice, mostly focussed on Positron Emission Tomography (PET).

Using the atomic and molecular physics positron beam at the ANU, the student will undertake measurements of positron scattering from simple targets, providing high accuracy data to test recent theoretical calculations.

Motivated by exciting prospects for measurements of the magnetism of rare isotopes produced by the new radioactive beam accelerators internationally, this experimental and computational project seeks to understand the enormous magnetic fields produced at the nucleus of highly charged ions by their atomic electron configuration.

We are seeking students to perform fundamental research into how different ions exert influence in a myriad of systems.

Development of efficient, versatile and fast laser femtosecond processes for advanced applications in modern dentistry promising a precise pain-free dental treatment for all patients.

This project will use unique, ANU-designed 3D X-ray microscopes and state-of-the art image analysis to track physiological responses of drought-tolerant Australian plants when subjected to water stress. The results will help us understand the mechanisms that underpin drought-tolerance, helping resolve ongoing debates and potentially improving the performance of dryland crops.

This is a multi-faceted project which can be adapted to students at the honours level and above. A number of possibilities exist to perform experiments directed towards improving the use of positrons in medice, mostly focussed on Positron Emission Tomography (PET).

This project aims to develop III-V semiconductors for applicaiton in solar fuels generation. 

Underground carbon sequestration looks essential if the world is going to keep global warming well below 2^oC.  This project will explore the physics underlying migration of injected carbon dioxide, to better understand when it will dissolve and sink to the deep earth before there is any chance of it migrating upwards.

The future global economy will be underpinned by technologies that depend on critical minerals such as such as lithium, nickel, copper and rare earth elements. In this project we will utilise unique 3D imaging and microscopic/spectroscopic tools to improve the characterisation and metallurgical processing of critical mineral systems.  

High precision optical measurement requires the development and deployment of highly stable laser sources. The first step towards stabilising a laser is tracking and measuring it's phase noise. This project aims to develop new signal processing and optical methods to track and stabilise cheap noisy lasers for precision measurement.

Develop an active vibraiton isolation platform to provide a quiet, small displacement environment for high precision inteferometry.

Space junk is a major problem for space travel. We use an energetic particle beam to manoeuvre a satellite close to junk then blast it with the particle beam to deorbit the junk

Use ultra-fast gamma-ray detectors to perform excited-state lifetime measurements and investigate single-particle and collective features of atomic nuclei. 

Following a practical introduction to optical interferometry for gravitational wave detectors and simulation tools, this project will model the optical configuration to optimize detector performance against a number of possible predictions of the neutron star equation of state.

The field of mechanical metamaterials is a fast-developing research domain, here the project aims at studying and developping wood-based and wood-inspired metamaterials.

Absolute gravimeters tie their measurement of gravity to the definition of the second 
by interrogating the position of a falling test mass using a laser interferometer. Our vision is to develop and prototype a miniaturised absolute gravimeter by 
leveraging modern vacuum, laser, and micro-electromechanical systems.

By leveraging hybrid digital-optical methods, we develop new distributed and quasi-distributed fibre-optic acoustic sensors. These acoustic sensors aim to measure vibration, strain and displacement all while localising the signal source along an optical fibre.

There is no lunar GPS so how will satellite orbits be determined for safety and efficiency in designing missions.

The measurement of the lifetimes of excited nuclear states is foundational for understanding nuclear excitations. This project covers three measurement methods that together span the nuclear lifetime range from about 100 femtoseconds to many nanoseconds. The project can include equipment development, measurement, and the development of analysis methodology (programming and computation). 

This project develops fibre optic instruments based on optical interferometry and digital signal processing for the purpose of inertial navigation.

When plasmas are decoupled from their source of power, much can be learned about non-local effects of energy transport.

Thrusters for propulsion generally require nozzles but is this necessary in the vaccum of space?

Low Earth Orbit satellites such as CubeSats can have their lifetime boosted by using our unique plasma thrusters to insert them into higher orbits. 

Machine learning based on deep neural networks is a powerful method for improving the performance of experiments.  It may also be useful for finding new physics.

Active plasma thrusters are needed for in orbit manouvers and for arranging constellations of satellites. 

Explore directional detection for underground dark matter searches.

Experimental work on expanding plasmas is greatly aided by computer simulation using plasma fluid codes. 

We employ Particle in Cell simulations that are inexpensive true computer experiments to complement the use of costly industrial microchip plasma systems.

For gravitational-wave detections and analyses, the raw outputs from the gravitational-wave detectors need to be converted into analysable data through some calibration apparatus. This project investigates new techniques to improve calibration accuracy and precision and better integrate the calibration bias into astrophysical analyses. 

High power ion beams can be used to replace lasers as sources for evaporated coating material. Work with industry to discover the physics.

The project aims to develop methods to improve the sensitivity of optical metasurfaces for the detection of chemical and biological markers. By tailoring a high-precision optical interferometric sensing solution to the optical properties of a metasurface under-test, the project will improve the sensitivity of these devices, developing a new range of targeted ultra-precise metasurface sensors.

The future global economy will be underpinned by technologies that depend on critical minerals such as such as lithium, nickel, copper and rare earth elements. In this project we will utilise unique 3D imaging and microscopic/spectroscopic tools to improve the characterisation and metallurgical processing of critical mineral systems.  

This project aims to gain fundamental insights into the mechanisms of energy dissipation in nuclear collisions by making new measurements that will aid in the development of new models of nuclear fusion.

Inter-satellite laser links are an emerging technology with applications in Earth Observation, telecommunications, security, and, the focus of the CGA space technology group.

Recent advances in laser technology now enable the combination of multiple high-quality lasers into a single high-power beam. This project aims to investigate such 'coherently-combined' laser systems within the context of Earth-to-Space laser transmission. Applications of this technology include space debris tracking, free-space optical communications, and propulsion of light-sails for interstellar travel, such as Breakthrough Starshot.

This project will use nuclear reactions to study the basic make-up of atomic nuclei at the quantum level, and investigate the impact of nuclear structure on sub-atomic forces and fundamental physics. 

We measure the basic forces that operate between molecules that are manifest at interfaces. These forces control the stability of colloidal systems from blood to toothpaste. We use very sensitive techniques that are able to measure tiny forces with sub nanometer distance resolution. Understanding these forces enables us to predict how a huge variety of colloidal systems will behave.

Underground carbon sequestration looks essential if the world is going to keep global warming well below 2^oC.  This project will explore the physics underlying migration of injected carbon dioxide, to better understand when it will dissolve and sink to the deep earth before there is any chance of it migrating upwards.

The goal of this research is to study high pressure non-equilibrium plasma discharges in chemically reactive systems with applications to space, waste treatment and material science.

Through field measurements of local gravity, local subterranean mass density variations comined with mathematical inversion can be mapped. Through field measurments and analysis we will develop this new technique and investigate its application to ground water mapping on Earth and subsurface structure studies on the Moon and Mars.

Nanobubbles are simply nanosized bubbles. What makes them interesting? Theory tells us they should dissolve in less than a second but they are in some cases stable for days.

Radionuclides such as 236U and 239Pu were introduced into the environment by the atmospheric nuclear weapon tests and an be readily measured by accelerator mass spectrometry.

Nuclear fusion is a promising technology for solving the world’s energy crisis while drastically reducing pollution and avoiding the creation of nuclear waste, a major issue for nuclear fission. However, there are many scientific and technical challenges to be overcome before this technology can be used for large-scale energy generation. One of the problems that need to be solved is the tolerance of the diverter walls to the high temperatures and He implantation – conditions that are prevalent inside the fusion reactors.

This project involves studying the complex plasma-surface interaction region of a fusion-relevant plasma environment through laser-based and spectroscopic techniques.

Fusion energy promises millions of years of clean energy, but puts extreme stress on materials. This research will resolve scientific issues surrounding plasma-material interactions to guide and facilitate development of future advanced materials for fusion reactors.

Nuclear fusion is a promising technology for solving the world’s energy crisis while drastically reducing pollution and avoiding the creation of nuclear waste, a major issue for nuclear fission. However, there are many scientific and technical challenges to be overcome before this technology can be used for large-scale energy generation. One of the problems that need to be solved is the tolerance of the diverter walls to the high temperatures and He implantation – conditions that are prevalent inside the fusion reactors.

Gravitational wave detectors have reached the thermodynamic limit of optical coatings. Further sensitivity improvements require new coating materials and noise mitigation techniques. This project is about designing an experiment to measure the exponential decay of mechanical oscillator modes for determining key properties of optical coatings.

This project explores the nonlinear optical properties of ultrathin 2D crystals to develop highly entangled photon sources.

New forms of materials can be made using extreme pressures via diamond anvil cells.

We are studying colloidal systems in highly concentrated salt solutions. Here a number of surprising and unexplained things happen that are associated with surprisingly long-ranged electrostatic forces

Controlling the flow of ions and molecules through nano-sized pores is fundamental in many biological processes and the basis for applications such as DNA detection, water desalination and drug delivery. The project aims to develop solid-state nanofluidic diodes and exploit their properties for applications in bio-sensors and ion-selective channels.

Machine learning (and in particular deep-learning) methods have been at the centre of amazing progress in the field of computational image analysis. In this project the student will work to develop machine-learning algorithms for tomographic reconstruction, and deploy these algorithms at the ANU CTLab imaging facility.

Interest in neuromorphic computing has led to interest in an excting new range of of solid-state neurons and synapses based on non-volatile resistive-switching and volatile threshold-switching in metal-oxide thin films.  This project explores the operation and functionality of these new devices with an emphasis on understanding the underlying mechanisms and materials physics.

This project aims to develop III-V semiconductors for applicaiton in solar fuels generation. 

This project will involve building a unified model of several theoretically-complex X-ray behaviours within the microscopes at the ANU CTLab, drawing from statistical and wave optics: spatial partial-coherence, refraction, and spectral interactions. The student will then apply this model to improve imaging capabilities at the ANU CTLab.

This experimental project will focus on nvestigation of strong light-matter coupling and exciton polaritons in novel atomically thin materials.

Gravitational wave detectors have reached the thermodynamic limit of optical coating performance and require novel coating materials and coating noise suppression techniques for further sensitivity improvements. This project is to design a high-bandwidth feedback control system to stabilise the intensity and frequency of a 2µm-band laser for investigations of thermal noise in experimental mirror coatings.

X-ray scatter is most significant when imaging very dense/large samples: e.g. metal parts, large 3D printed components, or samples imaged on the CTLab's new "whole core" scanner. The student will develop methods to correct for its effects, both in-hardware (i.e. at the microscope) and in-software (i.e. image analysis).

In this project the student will explore a cutting-edge "speckle tracking" method for measuring X-ray phase, in which computational image analysis is used to infer the X-ray phase from deformations in a known speckle pattern. This has both theoretical and experimental components.

This project involves studying the complex plasma-surface interaction region of a fusion-relevant plasma environment through laser-based and spectroscopic techniques.

Nano-pore membranes have important applications in chemical- and bio-sensing, water filtration and protein separation. This project will investigate our innovative technology to fabricate nanopore membranes in silicon dioxide and silicon nitride and exploit their use for advanced applications.

Gravitational wave detectors have reached the thermodynamic limit of optical coatings. Further sensitivity improvements require new coating materials and noise mitigation techniques. This project models the behaviour of higher order spatial laser modes in optical resonators for measuring coating thermal noise directly.

Laser Cleaning is a cutting-edge technique designed for removal of contamination layers from solid surfaces by irradiating the surface with a laser beam. It is a non-contact process, which does not require the use of chemicals or abrasives, eliminating problems of chemical toxicity, corrosive residues, and erasure of surface structure. 

Semiconductor nanowires are emerging nano-materials with substantial opportunities for novel photonic and quantum device applications. This project aims at developing a new generation of high performance NW based photodetectors for a wide range of applications.

We have shown that glassy carbon is a fascinating material which has different properties depending on thow it was formed. The effect on how order and impurities influences the new phases formed under pressure is not understood.

This project focuses on the integration of quantum emitters in 2D materials with photonic and optoelectronic platforms, enabling new applications in quantum communications and quantum information processing.

The hexagonal form of sp3 bonded carbon is predicted to be harder than 'normal' cubic diamond. We can make tiny amounts of this new form of diamond and want to know if it really is harder than diamond.

Contact resistance is becoming a major limitation to device performance and new strategies are required to meet the needs of next-generation devices.  Existing contacts typically exploit the thermal and chemical stability of silicide/Si interfaces and take the form of a metal/silicide/Si heterostructure (e.g. W/TiN/TiSi₂/Si), with the contact resistance dominated by the silicide/Si interface. The contact resistance of this interface is limited by the doping concentration in the Si substrate and the Schottky barrier height (SBH) of the heterojunction.  However, doping concentrations already exceed equilibrium solid solubility limits and further increases achieve only minor improvements.  Instead, any further reduction in contact resistivity relies on reducing the SBH.  This project will explore methods for controlling the SBH and develop device structures for measuring ultra-low contact resistivities.

This project investigates the structure and density of defects created in 2D materials by energetic ion irradiation, and their effect on the the physical properties of these materials.

This project aims to investigate the growth of III-V semiconductors on pre-patterned nanotemplates. By using different shapes and geometries, it is envisaged that these nanostructures will provide novel architectures for advanced, next generation optoelectronic devices.

Fusion energy promises millions of years of clean energy, but puts extreme stress on materials. This research will resolve scientific issues surrounding plasma-material interactions to guide and facilitate development of future advanced materials for fusion reactors.

Laser processing is a cutting-edge technique designed for to clean, texture, enhance surfaces in a way not possible with any other method. It is a non-contact process, which does not require the use of chemicals or abrasives, thus eliminating problems of chemical toxicity and corrosive residues.

This project aims to develop several liquid crystal-based tunable devices that can dynamically control light waves. This can be achieved by integrating liquid crystals with composite structures called metasurfaces. By applying external stimuli such as temperature, electric or magnetic field we can observe some fascinating effects in light propagation. The development of such metasurfaces holds an exceptional potential for the next generation of compact tunable optical systems that will find applications in sensing, ranging, and imaging.

This project involves working with scientists from imaging beamlines at the Australian Synchrotron (IMBL, XFM, MCT) and the Lucas Heights nuclear reactor (DINGO) to develop multi-modal, multi-scale, and dynamic imaging and tomography techniques alongside computational imaging scientists from ANU.

Generating 3D volumes, i.e., tomography, of an object as it changes over time  (or evolves) is a challenging problem. The ability to achieve this would reveal new information and understanding of many dynamic processes.

This is a multidisciplinary project supported by the ANU Grand Challenge project ‘Our Health in Our Hands’ (OHIOH), aimed at developing wearable sensors for detecting target biomarkers to identify certain health conditions.

Superconducting and spin qubits are leading quantum computing technologies, but we currently have no way to connect them to optical quantum networks that will make up a future quantum internet. This project will develop an interconnect capable of efficiently converting microwave quantum information from these qubits to optical frequencies.

The first 3D X-ray microscopes used viewing angles evenly spaced in a full 360 degrees around the sample. Recent innovations have freed us from this constraint: the microscopes at the ANU CTLab can utilise ever stranger and more innovative scanning patterns. However, this new freedom is not well explored.

This project aims to investigate the concepts and strategies required to produce electrically injected semiconductor nanowire lasers by understanding light interaction in nanowires, designing appropriate structures to inject current, engineer the optical profile and developing nano-fabrication technologies. Electrically operated nanowire lasers would enable practical applications in nanophotonics.

In this project we aim to design and demonstrate  III-V compound semiconductor based quantum well nanowire light emitting devices with wavelength ranging from 1.3 to 1.6 μm for optical communication applications.

We measure the basic forces that operate between molecules that are manifest at interfaces. These forces control the stability of colloidal systems from blood to toothpaste. We use very sensitive techniques that are able to measure tiny forces with sub nanometer distance resolution. Understanding these forces enables us to predict how a huge variety of colloidal systems will behave.

Experimental and theoretical work on the development of novel nanostructured materials with unusual optical properties. Special attention to our research is the development of tunable and functional nanostructured metamaterials that interact strongly with light. Such materials underpin novel optical technologies ranging from wearable sensors to night-vision devices.

This project will address the recently emerged new platform for nanophotonics based on high-index dielectric nanoparticles that opened a whole new realm of all-dielectric Mie-resonant nanophotonics or Mie-tronics. High-index dielectric nanoparticles exhibit strong interaction with light due to the excitation of electric and magnetic dipolar Mie-type resonances.

This project combines theoretical and experimental research on novel approaches to control propagation of light in nonreciprocal ways, similar to ways we control directions of electric currents with semiconductor diodes and transistors. We aim to achieve a radical miniaturisation of nonreciprocal photonics to the nanoscale.

We are studying colloidal systems in highly concentrated salt solutions. Here a number of surprising and unexplained things happen that are associated with surprisingly long-ranged electrostatic forces

Controlling the flow of ions and molecules through nano-sized pores is fundamental in many biological processes and the basis for applications such as DNA detection, water desalination and drug delivery. The project aims to develop solid-state nanofluidic diodes and exploit their properties for applications in bio-sensors and ion-selective channels.

We are seeking students to perform fundamental research into how different ions exert influence in a myriad of systems.

Interest in neuromorphic computing has led to interest in an excting new range of of solid-state neurons and synapses based on non-volatile resistive-switching and volatile threshold-switching in metal-oxide thin films.  This project explores the operation and functionality of these new devices with an emphasis on understanding the underlying mechanisms and materials physics.

The project aims to investigate compound semiconductor micro-ring lasers on silicon substrates using selective area growth to engineer the shape of the lasing cavity at the nano/micro-scale. This project will open up new doors to the industry since an integrated laser which is reliable, efficient and easily manufacturable is still elusive in Si photonics.

Develop and utilise computer simulations to analyse synchrotron based scattering from nano-sized objects.

Nanobubbles are simply nanosized bubbles. What makes them interesting? Theory tells us they should dissolve in less than a second but they are in some cases stable for days.

The project researchers generation of high optical harmonics -- sources of light with extreme properties: very short wavelengths and  very short time scale. We aim to miniaturise such sources of light to the nanoscale

Nano-pore membranes have important applications in chemical- and bio-sensing, water filtration and protein separation. This project will investigate our innovative technology to fabricate nanopore membranes in silicon dioxide and silicon nitride and exploit their use for advanced applications.

This project aims to demonstrate semiconductor nanowire based infrared avalanche photodetectors (APDs) with ultra-high sensitivity towards single photon detection. By employing the advantages of their unique one-dimensional nanoscale geometry, the nanowire APDs can be engineered to different device architectures to achieve performance superior to their conventional counterparts. This will contribute to the development of next generation infrared photodetector technology enabling numerous emerging fields in modern transportation, communication, quantum computation and information processing.

Contact resistance is becoming a major limitation to device performance and new strategies are required to meet the needs of next-generation devices.  Existing contacts typically exploit the thermal and chemical stability of silicide/Si interfaces and take the form of a metal/silicide/Si heterostructure (e.g. W/TiN/TiSi₂/Si), with the contact resistance dominated by the silicide/Si interface. The contact resistance of this interface is limited by the doping concentration in the Si substrate and the Schottky barrier height (SBH) of the heterojunction.  However, doping concentrations already exceed equilibrium solid solubility limits and further increases achieve only minor improvements.  Instead, any further reduction in contact resistivity relies on reducing the SBH.  This project will explore methods for controlling the SBH and develop device structures for measuring ultra-low contact resistivities.

This project investigates the structure and density of defects created in 2D materials by energetic ion irradiation, and their effect on the the physical properties of these materials.

This project aims to investigate the growth of III-V semiconductors on pre-patterned nanotemplates. By using different shapes and geometries, it is envisaged that these nanostructures will provide novel architectures for advanced, next generation optoelectronic devices.

This is a multidisciplinary project supported by the ANU Grand Challenge project ‘Our Health in Our Hands’ (OHIOH), aimed at developing wearable sensors for detecting target biomarkers to identify certain health conditions.

Many phenomena in nature, including multiple chemical and biological processes, are governed by the fundamental property of chirality. An object is called chiral when its mirror image cannot be superimposed with the original object. Many examples of chirality can be found in nature, from seashells to DNA molecules.

 

This project aims to be the first in the world to use radiation pressure force of laser beams to levitate a macroscopic mirror. The coherence of this resonantly amplified scheme creates a unique opto-mechanical environment for precision quantum metrology and tests of new physics theories.

Precise Earth gratitational field measurements with laser-ranging interferometry.

This project aims to investigate the concepts and strategies required to produce electrically injected semiconductor nanowire lasers by understanding light interaction in nanowires, designing appropriate structures to inject current, engineer the optical profile and developing nano-fabrication technologies. Electrically operated nanowire lasers would enable practical applications in nanophotonics.

High precision optical measurement requires the development and deployment of highly stable laser sources. The first step towards stabilising a laser is tracking and measuring it's phase noise. This project aims to develop new signal processing and optical methods to track and stabilise cheap noisy lasers for precision measurement.

Gravitational wave detectors have reached the thermodynamic limit of optical coatings. Further sensitivity improvements require new coating materials and noise mitigation techniques. This project is about designing an experiment to measure the exponential decay of mechanical oscillator modes for determining key properties of optical coatings.

In this project we aim to design and demonstrate  III-V compound semiconductor based quantum well nanowire light emitting devices with wavelength ranging from 1.3 to 1.6 μm for optical communication applications.

The project bridges the fundamental physics of topological phases with nonlinear optics. This promising synergy is expected to unlock advanced functionalities for applications in optical sources, frequency combs, isolators and multiplexers, switches and modulators, both for classical and quantum light. 

Experimental and theoretical work on the development of novel nanostructured materials with unusual optical properties. Special attention to our research is the development of tunable and functional nanostructured metamaterials that interact strongly with light. Such materials underpin novel optical technologies ranging from wearable sensors to night-vision devices.

This project aims to realise various useful artificial gauge fields for cavity photons and exciton polaritons. These fields are expected to be non-Hermitian and can be used to combine effects of non-Hermiticity and topology, e.g. topological edge states and non-Hermitian skin effect. Realising these non-Hermitian fields is an important step towards practical applications of exciton-polariton condensates and superfluids.

This project will address the recently emerged new platform for nanophotonics based on high-index dielectric nanoparticles that opened a whole new realm of all-dielectric Mie-resonant nanophotonics or Mie-tronics. High-index dielectric nanoparticles exhibit strong interaction with light due to the excitation of electric and magnetic dipolar Mie-type resonances.

This project explores the nonlinear optical properties of ultrathin 2D crystals to develop highly entangled photon sources.

This project combines theoretical and experimental research on novel approaches to control propagation of light in nonreciprocal ways, similar to ways we control directions of electric currents with semiconductor diodes and transistors. We aim to achieve a radical miniaturisation of nonreciprocal photonics to the nanoscale.

Antennas are at the heart of modern radio and microwave frequency communications technologies. They are the front-ends in satellites, cell-phones, laptops and other devices that make communication by sending and receiving radio waves. This project aims to design analog of optical nanoantennas for visible light for advanced optical communiction. 

Optical cavities are widely used in physics and precision measurement.  This project will explore the use of modern machine learning methods for the control of suspended optical cavities.  

Metasurface can the generation and manipulation of polarization-entangled photon pairs at the nanoscale.

By leveraging hybrid digital-optical methods, we develop new distributed and quasi-distributed fibre-optic acoustic sensors. These acoustic sensors aim to measure vibration, strain and displacement all while localising the signal source along an optical fibre.

This experimental project will focus on nvestigation of strong light-matter coupling and exciton polaritons in novel atomically thin materials.

The project aims to investigate compound semiconductor micro-ring lasers on silicon substrates using selective area growth to engineer the shape of the lasing cavity at the nano/micro-scale. This project will open up new doors to the industry since an integrated laser which is reliable, efficient and easily manufacturable is still elusive in Si photonics.

Gravitational wave detectors have reached the thermodynamic limit of optical coating performance and require novel coating materials and coating noise suppression techniques for further sensitivity improvements. This project is to design a high-bandwidth feedback control system to stabilise the intensity and frequency of a 2µm-band laser for investigations of thermal noise in experimental mirror coatings.

The project researchers generation of high optical harmonics -- sources of light with extreme properties: very short wavelengths and  very short time scale. We aim to miniaturise such sources of light to the nanoscale

Development of efficient, versatile and fast laser femtosecond processes for advanced applications in modern dentistry promising a precise pain-free dental treatment for all patients.

Gravitational wave detectors have reached the thermodynamic limit of optical coatings. Further sensitivity improvements require new coating materials and noise mitigation techniques. This project models the behaviour of higher order spatial laser modes in optical resonators for measuring coating thermal noise directly.

This project develops fibre optic instruments based on optical interferometry and digital signal processing for the purpose of inertial navigation.

The goal of the project is to understand new physical phenomena arising from quantum and nonlinear optical integration. In the future this research may open doors to new types of computers and simulators with information capacity exceeding the number of elementary particles in the entire universe.

Laser Cleaning is a cutting-edge technique designed for removal of contamination layers from solid surfaces by irradiating the surface with a laser beam. It is a non-contact process, which does not require the use of chemicals or abrasives, eliminating problems of chemical toxicity, corrosive residues, and erasure of surface structure. 

Semiconductor nanowires are emerging nano-materials with substantial opportunities for novel photonic and quantum device applications. This project aims at developing a new generation of high performance NW based photodetectors for a wide range of applications.

This project aims to demonstrate semiconductor nanowire based infrared avalanche photodetectors (APDs) with ultra-high sensitivity towards single photon detection. By employing the advantages of their unique one-dimensional nanoscale geometry, the nanowire APDs can be engineered to different device architectures to achieve performance superior to their conventional counterparts. This will contribute to the development of next generation infrared photodetector technology enabling numerous emerging fields in modern transportation, communication, quantum computation and information processing.

This project goal is to investigate, theoretically and experimentally, photonic systems with synthetic dimensionality exceeding the three spatial dimensions, and reveal new opportunities for applications in optical signal switching and sensing in classical and quantum photonics.

Using non-classical light states on laser interferometric gravitational-wave detectors, to further enhance the best length measurement devices in the world.

Laser processing is a cutting-edge technique designed for to clean, texture, enhance surfaces in a way not possible with any other method. It is a non-contact process, which does not require the use of chemicals or abrasives, thus eliminating problems of chemical toxicity and corrosive residues.

This project aims to develop several liquid crystal-based tunable devices that can dynamically control light waves. This can be achieved by integrating liquid crystals with composite structures called metasurfaces. By applying external stimuli such as temperature, electric or magnetic field we can observe some fascinating effects in light propagation. The development of such metasurfaces holds an exceptional potential for the next generation of compact tunable optical systems that will find applications in sensing, ranging, and imaging.

Gravitational wave detectors have reached the thermodynamic limit of optical coating performance and require novel coating materials and noise mitigation techniques for further sensitivity improvements. This project is to implement a phase tracking system for the optical beat between two 2µm-band lasers for coating thermal noise measurements.

The project aims to develop methods to improve the sensitivity of optical metasurfaces for the detection of chemical and biological markers. By tailoring a high-precision optical interferometric sensing solution to the optical properties of a metasurface under-test, the project will improve the sensitivity of these devices, developing a new range of targeted ultra-precise metasurface sensors.

This project aims for developing polarization optical devices based on all-dielectric metasurfaces. As no bulky optical elements and moving parts are required, these devices are compact, stable, and can operate in a single-shot mode with high time resolution. Potential applications include sensitive biological imaging and quantum state manipulation and tomography. 

Many phenomena in nature, including multiple chemical and biological processes, are governed by the fundamental property of chirality. An object is called chiral when its mirror image cannot be superimposed with the original object. Many examples of chirality can be found in nature, from seashells to DNA molecules.

 

This project combines theoretical and experimental research on exciton polaritons in semiconductor microcavities. We investigate emergent quantum phenomena far from equilibrium and their applications for next-generation optoelectronics devices.

Inter-satellite laser links are an emerging technology with applications in Earth Observation, telecommunications, security, and, the focus of the CGA space technology group.

Recent advances in laser technology now enable the combination of multiple high-quality lasers into a single high-power beam. This project aims to investigate such 'coherently-combined' laser systems within the context of Earth-to-Space laser transmission. Applications of this technology include space debris tracking, free-space optical communications, and propulsion of light-sails for interstellar travel, such as Breakthrough Starshot.

We have developed Virtual Reality apps to enahnce learning in physics education. We have recent evidence of effectiveness in correcting misconceptions in Newtonian Physics with VR. Our other app in an Electric and Magnetic field simulator. Several opportunies exist for further studies on efficacy, as well as software development. 

meriSTEM is an ANU initiative providing online learning resources and support to Australian senior secondary science teachers and students. We cater to senior physics, chemistry, biology, and Earth and environmental science.

The program is free and is made up of the video, worksheet, quiz and other contributions from many academics and students. We welcome everyone to be involved.

Undergrad research and internship projects offer students a chance to be a member of the meriSTEM team.

Plasma–liquid interactions are an important topic in the field of plasma science and technology. The interaction of non-equilibrium plasmas with a liquid have many important applications ranging from environmental remediation to material science and health care.

This project will use unique, ANU-designed 3D X-ray microscopes and state-of-the art image analysis to track physiological responses of drought-tolerant Australian plants when subjected to water stress. The results will help us understand the mechanisms that underpin drought-tolerance, helping resolve ongoing debates and potentially improving the performance of dryland crops.

This project will allow us to understand the time-dependence of quantum tunnelling and nuclear fusion.

Use ultra-fast gamma-ray detectors to perform excited-state lifetime measurements and investigate single-particle and collective features of atomic nuclei. 

This experiment will characterise dark matter detector material. Lowest levels of natural radioactivity in high purity samples will be analysed via ultra-senstive single atom counting using acclerator mass spectrometry.

Improved understandings of nuclear fission is key for many areas of science, including heavy element formation in supernova and neutron-star mergers, making safer nuclear reactors, and the formation and properties of long-lived superheavy isotopes. Students involved in this project will further our understanding of fission across the chart of nuclides.

Nuclear metastable states, known colloquially as isomers, have energy densities millions of times greater than chemical batteries. This project investigates nuclear pathways for reliably extracting this energy from candidate isotopes on demand. 

Some nuclei, like stable ^6,7Li and ⁹Be or radioactive ⁸Li and ⁶He, are weakly-bound, which gives them a cluster structure which can be broken apart with very little input of energy. These nuclei show a huge variety of behaviors which challenge our understanding of nuclear reactions, requiring experimental measurements. 

Large scale quantum many body simulations are performed to study the quantum shell effects that determine the final properties of the nuclear fission fragments. 

The measurement of the lifetimes of excited nuclear states is foundational for understanding nuclear excitations. This project covers three measurement methods that together span the nuclear lifetime range from about 100 femtoseconds to many nanoseconds. The project can include equipment development, measurement, and the development of analysis methodology (programming and computation). 

We investigate the impact of nuclear structure on the interaction of a dark matter particle with a nucleus. 

Radionuclides can serve as tracers and chronometers for environmental processes. The time scale for these clocks is set by the half-life of the respective radioisotope. Using accelerator mass spectrometry and decay counting this project aims investigate the chronology of the Early Solar System.

Investigate the properties of exotic nuclei and their impact on fundamental models and creation of the elements when stars explode. 

This project builds on our established track record of developing novel methods to measure magnetic moments of picosecond-lived excited states in atomic nuclei, and the theoretical interpretation of those measurements. Students will help establish new methodologies to underpin future international research at the world's leading radioactive beam laboratories.

 

Explore directional detection for underground dark matter searches.

Motivated by exciting prospects for measurements of the magnetism of rare isotopes produced by the new radioactive beam accelerators internationally, this experimental and computational project seeks to understand the enormous magnetic fields produced at the nucleus of highly charged ions by their atomic electron configuration.

This project aims to gain fundamental insights into the mechanisms of energy dissipation in nuclear collisions by making new measurements that will aid in the development of new models of nuclear fusion.

This project aims to discover if the long-held concept of low-energy nuclear vibrations holds true under scrutiny from Coulomb excitation and nucleon-transfer reactions. 

This project will use nuclear reactions to study the basic make-up of atomic nuclei at the quantum level, and investigate the impact of nuclear structure on sub-atomic forces and fundamental physics. 

Space junk is a major problem for space travel. We use an energetic particle beam to manoeuvre a satellite close to junk then blast it with the particle beam to deorbit the junk

Plasma–liquid interactions are an important topic in the field of plasma science and technology. The interaction of non-equilibrium plasmas with a liquid have many important applications ranging from environmental remediation to material science and health care.

The goal of this research is to study high pressure non-equilibrium plasma discharges in chemically reactive systems with applications to space, waste treatment and material science.

When plasmas are decoupled from their source of power, much can be learned about non-local effects of energy transport.

Low Earth Orbit satellites such as CubeSats can have their lifetime boosted by using our unique plasma thrusters to insert them into higher orbits. 

Experimental work on expanding plasmas is greatly aided by computer simulation using plasma fluid codes. 

We employ Particle in Cell simulations that are inexpensive true computer experiments to complement the use of costly industrial microchip plasma systems.

High power ion beams can be used to replace lasers as sources for evaporated coating material. Work with industry to discover the physics.

This project aims to be the first in the world to use radiation pressure force of laser beams to levitate a macroscopic mirror. The coherence of this resonantly amplified scheme creates a unique opto-mechanical environment for precision quantum metrology and tests of new physics theories.

Precise Earth gratitational field measurements with laser-ranging interferometry.

In this project we investigate, through analytic calculation and simulation, the design and performance limits of a microfabricated quantum-ring atom gyroscope. This is a new design that builds on the quantum vortex gyroscope under development at ANU.

This project will construct a 3D optical lattice apparatus for ultracold metastable Helium atoms, which will form an experimental quantum-simulator to investigate quantum many-body physics. A range of experiments will be performed such as studying higher order quantum correlations across the superfluid to Mott insulator phase transition.

Develop an active vibraiton isolation platform to provide a quiet, small displacement environment for high precision inteferometry.

This project aims to realise various useful artificial gauge fields for cavity photons and exciton polaritons. These fields are expected to be non-Hermitian and can be used to combine effects of non-Hermiticity and topology, e.g. topological edge states and non-Hermitian skin effect. Realising these non-Hermitian fields is an important step towards practical applications of exciton-polariton condensates and superfluids.

When two point sources of light are close together, we just see one blurry patch. This project aims to use coherent measurement techniques in quantum optics to measure the separation between the point sources beyond the Rayleigh's limit.

An optical quantum memory will capture a pulse of light, store it and then controllably release it. This has to be done without ever knowing what you have stored, because a measurement will collapse the quantum state. We are exploring a "photon echo" process to achieve this goal.

Absolute gravimeters tie their measurement of gravity to the definition of the second 
by interrogating the position of a falling test mass using a laser interferometer. Our vision is to develop and prototype a miniaturised absolute gravimeter by 
leveraging modern vacuum, laser, and micro-electromechanical systems.

Metasurface can the generation and manipulation of polarization-entangled photon pairs at the nanoscale.

Antiparticles and antimatter have progressed from theory and science fiction to become an important and exciting area of pure and applied science. This fundamental atomic physics project will investigate how antimatter and matter interact by experimentally studying the interaction of positrons (the electron anti-particle) with trapped ultracold rubidium atoms.

This experimental project aims to create entangled states of ultracold helium atoms where the entanglement is between atoms of different mass. By manipulating the entangled pairs using laser induced Bragg transitions and measuring the resulting correlations, we will study how gravity affects mass-entangled particles.

The idea of equilibration is ubiquitous throughout nature. Out-of-equilibrium dynamics – be it caused by a disturbance and subsequent “rethermalisation”, or by passing through a phase transition – is a difficult question to characterise. This project looks at both equilibration and phase transitions in a Bose-Einstein condensate of metastable helium atoms.

Through field measurements of local gravity, local subterranean mass density variations comined with mathematical inversion can be mapped. Through field measurments and analysis we will develop this new technique and investigate its application to ground water mapping on Earth and subsurface structure studies on the Moon and Mars.

The goal of the project is to understand new physical phenomena arising from quantum and nonlinear optical integration. In the future this research may open doors to new types of computers and simulators with information capacity exceeding the number of elementary particles in the entire universe.

This project focuses on the integration of quantum emitters in 2D materials with photonic and optoelectronic platforms, enabling new applications in quantum communications and quantum information processing.

Multi-parameter state estimation at the fundamental precision limit

This project goal is to investigate, theoretically and experimentally, photonic systems with synthetic dimensionality exceeding the three spatial dimensions, and reveal new opportunities for applications in optical signal switching and sensing in classical and quantum photonics.

Using non-classical light states on laser interferometric gravitational-wave detectors, to further enhance the best length measurement devices in the world.

The Global Network of Optical Magnetometers for Exotic Physics (GNOME) uses precision atomic magnetometers to look new physics.  The concept is to have a global network of magnetometers looking for correlated magnetic field fluctuations that may be caused by strange, and unknown physics.

Machine learning based on deep neural networks is a powerful method for improving the performance of experiments.  It may also be useful for finding new physics.

This project aims to use a machine learning algorithm to perform beam alignment in an optics experiment. It would involve mode-matching two optical beams using motorised mirror mounts. Additional degrees of freedom like lens positions and beam polarisation can be added later.

Superconducting and spin qubits are leading quantum computing technologies, but we currently have no way to connect them to optical quantum networks that will make up a future quantum internet. This project will develop an interconnect capable of efficiently converting microwave quantum information from these qubits to optical frequencies.

Construct a small dual tosion pendulum which have their centre of mass co-incide and their rotational axis colinear. Inital diagnostics will be done using shadow sensors.

This project aims for developing polarization optical devices based on all-dielectric metasurfaces. As no bulky optical elements and moving parts are required, these devices are compact, stable, and can operate in a single-shot mode with high time resolution. Potential applications include sensitive biological imaging and quantum state manipulation and tomography. 

This project combines theoretical and experimental research on exciton polaritons in semiconductor microcavities. We investigate emergent quantum phenomena far from equilibrium and their applications for next-generation optoelectronics devices.

This project will allow us to understand the time-dependence of quantum tunnelling and nuclear fusion.

We apply the most advanced quantum-mechanical modeling to resolve electron motion in atoms and molecules on the atto-second (one quintillionth of a second) time scale.  Our theoretical modeling, based on a rigorous, quantitative description of correlated electron dynamics, provides insight into new physics taking place on the atomic time scale.

Antennas are at the heart of modern radio and microwave frequency communications technologies. They are the front-ends in satellites, cell-phones, laptops and other devices that make communication by sending and receiving radio waves. This project aims to design analog of optical nanoantennas for visible light for advanced optical communiction. 

Large scale quantum many body simulations are performed to study the quantum shell effects that determine the final properties of the nuclear fission fragments. 

Using methods of quantum many-body theory to describe elementary processes in atoms and molecules interacting with strong electromagnetic fields.

The project studies possibility of the coherent control (i.e. manipulating properties of a quantum system, such as charge density, levels populations, etc., using a suitably tailored laser pulse) for a quantum mechanical model of a molecule.

We investigate the impact of nuclear structure on the interaction of a dark matter particle with a nucleus. 

Multi-parameter state estimation at the fundamental precision limit

This project builds on our established track record of developing novel methods to measure magnetic moments of picosecond-lived excited states in atomic nuclei, and the theoretical interpretation of those measurements. Students will help establish new methodologies to underpin future international research at the world's leading radioactive beam laboratories.

 

This project involves working with scientists from imaging beamlines at the Australian Synchrotron (IMBL, XFM, MCT) and the Lucas Heights nuclear reactor (DINGO) to develop multi-modal, multi-scale, and dynamic imaging and tomography techniques alongside computational imaging scientists from ANU.

In recent years there was a large boost in development of advanced variational methods which play an important role in analytic and numerical studies of  1D and 2D quantum spin systems. Such methods are based on the ideas coming from the renormalization group theory which states that  physical properties of  spin systems become scale invariant near criticality. One of the most powerful variational algorithms is the corner-transfer matrices (CTM) method which allows to predict properties of large systems based on a simple iterative algorithm.

The aim of this project is to introduce quantum integrable systems which play a very important role in modern theoretical physics. Such systems provide one of very few ways to analyze nonlinear effects in continuous and discrete quantum systems.

We will study links between integrable systems in statistical mechanics, combinatorial problems and special functions in mathematics. This area of research has attracted many scientist's attention during the last decade and revealed unexpected links to other areas of mathematics like enumeration problems and differential equations.

There are many interesting physical statistical systems which never reach thermal equilibrium. Examples include surface growth, diffusion processes or traffic flow. In the absence of general theory of such systems a study of particular models plays a very important role. Integrable systems provide examples of such systems where one can analyze time dynamics using analytic methods.

The project bridges the fundamental physics of topological phases with nonlinear optics. This promising synergy is expected to unlock advanced functionalities for applications in optical sources, frequency combs, isolators and multiplexers, switches and modulators, both for classical and quantum light. 

The field of mechanical metamaterials is a fast-developing research domain, here the project aims at studying and developping wood-based and wood-inspired metamaterials.

Develop and utilise computer simulations to analyse synchrotron based scattering from nano-sized objects.

Generating 3D volumes, i.e., tomography, of an object as it changes over time  (or evolves) is a challenging problem. The ability to achieve this would reveal new information and understanding of many dynamic processes.

In ghost imaging, images are formed based on photons that have never interacted with the sample. 3D ghost imaging was first performed in 2018 by scientists at ANU and international collaborators at the European Synchrotron Radiation Facility: the student will work with these scientists to further advance the field.