Departmental Seminar

Reconfigurable and Forbidden Mie Resonator Physics and Devices

Professor Jon A. Schuller
Electrical and Computer Engineering, UC Santa Barbara, USA

Mie resonances in high index dielectric nanostructures have enabled a variety of novel nanophotonic concepts and technologies. For instance, Mie resonators are used in optical antennas, photodetectors, coatings, and metasurfaces. In this seminar I discuss my group’s recent research on Mie resonance engineering. I will demonstrate ultrawide tuning of infrared Mie resonators using electro-optic and thermo-optic effects in III-V and IV-VI semiconductors respectively. We tune Mie resonances by more than one linewidth using order-unity refractive index modulation, and show how such phenomena may enable reconfigurable metasurface devices. I conclude with an exploration of “forbidden” modes and new optical physics that emerge when Mie resonators are interrogated with unconventional light beams.

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