期刊
APPLIED PHYSICS LETTERS
卷 94, 期 8, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3086898
关键词
diffraction gratings; integrated optoelectronics; lenses; metal-semiconductor-metal structures; nanophotonics; photodetectors; plasmonics; polaritons; surface plasmons
资金
- National Science Foundation [ECCS 0702716]
- U. S. Army Research Office [W911NF-06-1-0127, W911NF-08-1-0067]
We present a fabricated metal-semiconductor-metal (MSM) photodetector exhibiting an enhanced photocurrent by integrating a nanoscale metallic grating into its contacts. This serves to increase the incident photon flux about the aperture of the device by guiding incident photons as surface plasmon polaritons. High speed time response data shows that the device responsivity may be increased without sacrificing speed. We demonstrate both a photocurrent enhancement and responsivity increase of about 90% at the design wavelength in comparison to otherwise identical MSM photodetectors without integrated nanoscale gratings. The device retains the MSM advantages of simplicity, planarity, and monolithic integrability.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据