Polarization is a fundamental property of light which can be used to record, process and store information in both classical and quantum regions. On the other hand, the variation of polarization state after light-matter interaction can provide valuable information in addition to the intensity, phase and spectral properties of light. Therefore, monitoring polarization and its change is a critical concept in many developing techniques. However, conventional polarization detectors are typically bulky, reliant on moving parts, and limited in time resolution.
Recently, metasurfaces (planar artificial materials with engineered optical properties not found in nature) have shown a great potential to simplify and compactify the footprint of optical systems within polarization optics without requiring bulky optical elements and moving parts. Examples include arbitrary polarization-pair transformation , single-shot polarization imaging with both classical  and quantum  light. These works suggest new research directions in polarization optics.
This project aims for developing an integrated all-dielectric metasurface platform for polarization manipulation and detection with fast and multifunctional operation. There is a scope for numerical design and optimization, cleanroom fabrication, and experimental characterization of metasurfaces for various contexts such as ultra-sensitive polarization deviation monitoring, multifunctional polarization gratings, and multi-photon quantum state transformation. We use machine learning to design and optimize the optical response of the metasurfaces for specific requirements. Potential applications of this project include ultracompact polarization optical elements, sensitive biological imaging, and quantum state manipulation and tomography.
The project is a part of the newly established Australian Research Centre of Excellence for Transformative Meta-Optical Systems (TMOS), https://tmos.org.au/. This is an exciting opportunity to contribute to the TMOS mission of developing the next-generation of miniaturised optical systems with functionalities beyond what is conceivable today.
 arXiv:2006.16559 (2020);  Science 365, eaax1839 (2019);  Science 361, 1104 (2018).
Physical optics and Fourier optics.
Knowledge of quantum mechanics and experience in matlab or python coding would be beneficial.