Theoretical investigation of the transverse optical force between a silicon nanowire waveguide and a substrate

被引：54
|
作者：
Pernice, W. H. P. [1 ]
Li, Mo [1 ]
Tang, H. X. [1 ]
机构：
[1] Yale Univ, Dept Elect Engn, New Haven, CT 06520 USA
来源：
OPTICS EXPRESS | 2009年 / 17卷 / 03期
关键词：
RADIATION-PRESSURE; DIELECTRIC MEDIA; LINEAR MOMENTUM;
D O I：
10.1364/OE.17.001806
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present a study of transverse optical forces arising in a freestanding silicon nanowire waveguide. A theoretical framework is provided for the calculation of the optical forces existing between a waveguide and a dielectric substrate. The force is evaluated using a numerical procedure based on finite-element simulations. In addition, an analytical formalism is developed which allows for a simple approximate analysis of the problem. We find that in this configuration optical forces on the order of pN can be obtained, sufficient to actuate nano-mechanical devices. (C) 2009 Optical Society of America
引用
收藏
页码：1806 / 1816
页数：11
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