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29 September 2023 Tuning metasurfaces by controlling liquid crystals in three dimensions
Yana Izdebskaya, Ziwei Yang, Vladlen Shvedov, Dragomir Neshev, Ilya V. Shadrivov
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Proceedings Volume PC12658, Liquid Crystals XXVII; PC126580C (2023) https://doi.org/10.1117/12.2677227
Event: SPIE Organic Photonics + Electronics, 2023, San Diego, California, United States
Abstract
All-dielectric metasurfaces have exceptional potential for next-generation tunable optical systems, which are promising for applications in sensing, ranging, and imaging. One attractive way to achieve tunability is by infiltrating dielectric metasurfaces with liquid crystals due to the large tunability that can be achieved. Here, we introduce a fully controllable 3D active tuning of dielectric metasurfaces that include liquid crystals, where an external magnetic field effectively controls molecular reorientation. This approach offers new opportunities for realizing dynamically reconfigurable metadevices without the usual limitations imposed by fixed boundary conditions induced by molecular pre-alignment, which cannot be changed.
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Yana Izdebskaya, Ziwei Yang, Vladlen Shvedov, Dragomir Neshev, and Ilya V. Shadrivov "Tuning metasurfaces by controlling liquid crystals in three dimensions", Proc. SPIE PC12658, Liquid Crystals XXVII, PC126580C (29 September 2023); https://doi.org/10.1117/12.2677227
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KEYWORDS
Liquid crystals
Dielectrics
Magnetism
Anisotropy
Boundary conditions
Dielectric polarization
Holograms
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