Plasmonic Nanoslit Array Enhanced Metal-Semiconductor-Metal Optical Detectors

被引：9
|
作者：
Eryilmaz, Sukru Burc [1 ]
Tidin, Onur [1 ]
Okyay, Ali K. [1 ]
机构：
[1] Bilkent Univ, Dept Elect & Elect Engn, UNAM Inst Mat Sci & Nanotechnol, TR-06800 Ankara, Turkey
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2012年 / 24卷 / 07期
关键词：
Photodetectors; plasmons; silicon germanium; TRANSMISSION; PHOTODIODES;
D O I：
10.1109/LPT.2012.2183342
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Metallic nanoslit arrays integrated on germanium metal-semiconductor-metal photodetectors show many folds of absorption enhancement for transverse-magnetic polarization in the telecommunication C-band. Such high enhancement is attributed to resonant interference of surface plasmon modes at the metal-semiconductor interface. Horizontal surface plasmon modes were reported earlier to inhibit photodetector performance. We computationally show, however, that horizontal modes enhance the efficiency of surface devices despite reducing transmitted light in the far field.
引用
收藏
页码：548 / 550
页数：3
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