Simultaneous control of the scattering amplitude, phase, and polarization with nonlocal metasurfaces

Adam Overvig; Andrea Alu; Yoshiaki Kasahara

doi:10.1117/12.2650203

17 March 2023 Simultaneous control of the scattering amplitude, phase, and polarization with nonlocal metasurfaces

Adam Overvig, Andrea Alu, Yoshiaki Kasahara

Proceedings Volume PC12432, High Contrast Metastructures XII; PC1243203 (2023) https://doi.org/10.1117/12.2650203
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Nonlocal metasurfaces have been enabling frequency-selective control over the spatial profile of light, but have thus far been limited to circular polarizations and/or 25% maximal efficiency. Here, we extend these capabilities to include any polarization state with near-unity efficiency. We report the finding of a polarization-agnostic geometric phase, and experimentally establish that it applies even to linear polarization states. Using symmetry-breaking design principles, this platform has complete control over all four physical degrees of freedom available to a Fano resonance (lifetime, resonant phase, and resonant polarization) and opens opportunities in augmented reality, secure optical communications, and nonlinear and quantum optics.

Conference Presentation

Citation Download Citation

Adam Overvig, Andrea Alu, and Yoshiaki Kasahara "Simultaneous control of the scattering amplitude, phase, and polarization with nonlocal metasurfaces", Proc. SPIE PC12432, High Contrast Metastructures XII, PC1243203 (17 March 2023); https://doi.org/10.1117/12.2650203

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