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8 October 2024 A highly transmissive polarization converting active metasurface using liquid crystal reorientation
Jared Sisler, Claudio U. Hail, Zoey S. Davidson, Ruzan Sokhoyan, Selim Elhadj, Harry A. Atwater
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Proceedings Volume PC13109, Metamaterials, Metadevices, and Metasystems 2024; PC131091A (2024) https://doi.org/10.1117/12.3028407
Event: Nanoscience + Engineering, 2024, San Diego, California, United States
Abstract
We report on the active control of transmissive polarization switching of near infrared light in two dimensions (2D) using liquid crystal (LC) infiltrated Ti3O5 nanostructures with > 50% efficiency in experiment. Our device consists of a periodic array of elliptical Ti3O5 pillars submerged in a thin (~ 2 um) LC layer and supports overlapping electric and magnetic dipoles under linearly polarized incidence. Using a biased photoactive top contact, we manipulate light in 2D by patterning a 435 nm pump laser on its surface to locally modulate LCs in illuminated areas. This work can find applications in solid-state programmable beam shaping and steering.
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Jared Sisler, Claudio U. Hail, Zoey S. Davidson, Ruzan Sokhoyan, Selim Elhadj, and Harry A. Atwater "A highly transmissive polarization converting active metasurface using liquid crystal reorientation", Proc. SPIE PC13109, Metamaterials, Metadevices, and Metasystems 2024, PC131091A (8 October 2024); https://doi.org/10.1117/12.3028407
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KEYWORDS
Liquid crystals
Dielectric polarization
Polarized light
Dielectrics
Lithium
Modulation
Switching
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