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13 October 2022 Tunable structured light with multifunctional metasurfaces
Ahmed H. Dorrah, Federico Capasso
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Proceedings Volume PC12197, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XX; PC1219707 (2022) https://doi.org/10.1117/12.2634175
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States
Abstract
Recent advances in wavefront shaping have enabled new classes of structured light, leading to new phenomena and applications. We review current progress in these areas with focus on meta-optics that exhibit a tunable response at the output by simply changing the properties of incident light; including input polarization, orbital angular momentum, angle of incidence, and/or wavelength. Multifunctional devices of this kind rely on intricate light-matter interaction at the level of meta-atoms which can be difficult to replicate using other wavefront shaping tools. In addition, we present a new class of holograms — dubbed holographic light sheets — for generating 3D structured light and discuss its potential use in AR/VR applications. Lastly, we highlight new directions in generating time-varying optical vortices using dispersion-engineered metasurfaces and discuss its future applications.
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Ahmed H. Dorrah and Federico Capasso "Tunable structured light with multifunctional metasurfaces", Proc. SPIE PC12197, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XX, PC1219707 (13 October 2022); https://doi.org/10.1117/12.2634175
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KEYWORDS
Structured light
Polarization
Light wave propagation
Wavefronts
Phase shifts
Plasmonics
Polarization analysis
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