Journal
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Volume 127, Issue 3, Pages -Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00339-021-04364-5
Keywords
Mid-infrared; 2D materials; Photodetectors
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In this study, vertically illuminated Si-compatible mid-infrared photodetectors based on graphene forming negative-index metamaterial are presented. The research focuses on a low-loss metamaterial structure with nano/microholes through 2D materials, supporting resonance and enhancing quantum efficiency across a wide range of incident angles.
We present the vertically illuminated Si compatible mid-infrared photodetectors based on graphene that forms negative-index metamaterial. The coupling into a 2D layer at the angles near normal to the surface is negligible without the help of a metamaterial. We propose a low loss metamaterial, the dielectric structure with the nano/microholes through 2D materials that supports a resonance and enhances quantum efficiency in a wide range of incident angles.
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