OPTICAL METASURFACES EMBEDDED ON HIGH CTE SURFACE

    公开(公告)号:US20220334413A1

    公开(公告)日:2022-10-20

    申请号:US17232972

    申请日:2021-04-16

    Abstract: An optical metasurface which shifts resonant frequency in response to changing temperature. The optical metasurface includes a membrane printed in a pattern from materials with a high coefficient of thermal expansion (“CTE”). The optical metasurface can include a plurality of high CTE fibers/structures in a first direction and a plurality of low CTE fibers/structures in a second direction perpendicular to the first direction. Alternatively, the high CTE substrate can include a plurality of high CTE fibers/structures in only a first direction. The high CTE substrate can include a plurality of high CTE fibers and a plurality of low CTE fiber in a pattern which creates desired sensing domains. An array of nanostructures is formed on the high CTE substrate. The array of nanostructures is designed to resonate with light transmitted through or impinging upon the optical metasurface. The resonant frequency of the response can be tuned thermally.

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