Mid-infrared photodetector based on 2D material metamaterial with negative index properties for a wide range of angles near vertical illumination

被引:7
|
作者
Devine, E. Ponizovskaya [1 ]
机构
[1] Univ Calif Davis, Davis, CA 95616 USA
来源
关键词
Mid-infrared; 2D materials; Photodetectors;
D O I
10.1007/s00339-021-04364-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
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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页数:5
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