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4 October 2023 3D meta-optics for sorting light by wavelength, polarization, and angle of incidence
Andrei Faraon, Gregory Roberts, Ian Foo
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Proceedings Volume PC12746, SPIE-CLP Conference on Advanced Photonics 2023; PC1274605 (2023) https://doi.org/10.1117/12.2689944
Event: SPIE-CLP Conference on Advanced Photonics, 2023, San Diego, California, United States
Abstract
Modern imaging systems can be enhanced in efficiency, compactness, and range of applications through introduction of multilayer nanopatterned structures for manipulation of light based on its fundamental properties. High transmission efficiency multispectral imaging is surprisingly elusive due to the use of absorptive or reflective filter arrays which discard most of the incident light. Further, most cameras in use today do not leverage the wealth of information in the polarization and spatial degrees of freedom. Metaoptical components can be tailored to respond to these varying electromagnetic properties, but have been mostly explored in single-layer, ultrathin geometries, which limits their capacity for multifunctional behavior. Here we show the design of several pixel-sized scattering structures which sort light efficiently based on its wavelength, polarization state, and spatial mode.
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Andrei Faraon, Gregory Roberts, and Ian Foo "3D meta-optics for sorting light by wavelength, polarization, and angle of incidence", Proc. SPIE PC12746, SPIE-CLP Conference on Advanced Photonics 2023, PC1274605 (4 October 2023); https://doi.org/10.1117/12.2689944
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KEYWORDS
Polarization
Light scattering
Lithography
Magnetism
Mid-IR
Multispectral imaging
Nanostructures
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