Abstract

Subwavelength gratings (SWGs) that consist of net-grid structure are studied .They are applied as infrared reflectors whose reflectivity can achieve 99.98% at 1.55μm and larger than 99% across 1.47~1.59μm range. SWGs are designed as bottom mirrors in resonant cavity enhanced photodetectors to improve quantum efficiency and realize size reduction.

© OSA, IEEE Photonics Society, SPIE, COS, CIC

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