Direction-dependent optical modes in nanoscale Silicon waveguides

被引：3
作者：
Robinson, Jacob T. [2 ]
Lipson, Michal [1 ,2 ]
机构：
[1] Cornell Univ, Kavli Inst Cornell Nanoscale Sci, Ithaca, NY 14853 USA
[2] Cornell Univ, Sch Elect & Comp Engn, Ithaca, NY 14853 USA
来源：
OPTICS EXPRESS | 2011年 / 19卷 / 19期
基金：
美国国家科学基金会;
关键词：
LIGHT; INTERCONNECTS; COMPACT;
D O I：
10.1364/OE.19.018380
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We show that in high-index-contrast nanoscale waveguides counter propagating waves can posses distinct spatial near-field profiles. Using transmission-based near-field scanning optical microscopy (TraNSOM), we identify and map the unique near-field intensity distributions of these counter-propagating modes in a single-mode silicon waveguide. Based on this phenomenon, we design and simulate an integrated device 45 mu m in length that selectively attenuates reflected light with an insertion loss of -3.6 dB and an extinction of greater than -20 dB. (C) 2011 Optical Society of America
引用
收藏
页码：18380 / 18392
页数：13
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