Resonant Anti-Reflection Metasurfaces for Infrared Transmission Optics.

ABSTRACT: A fundamental capability needed for any transmissive optical component is anti-reflection, yet this capability can be challenging to achieve in a cost-effective manner over longer infrared wavelengths. We demonstrate that Mie-resonant photonic structures can enable high transmission through a high-index optical component, allowing it to function effectively over long-wavelength infrared wavelengths. Using silicon as a model system, we demonstrate a resonant metasurface that enables a window optic with transmission up to 40% greater than that of unpatterned Si. Imaging comparisons with unpatterned Si and off-the-shelf germanium optics are shown as well as modulation transfer function measurements, showing excellent performance and suitability for imaging applications. Our results show how r

SUBMITTER: Brewer J 

PROVIDER: S-EPMC10571145 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature