Trapping of a micro-bubble by non-paraxial Gaussian beam: computation using the FDTD method

被引：25

作者：

Sung, Seung-Yong ^{[1
,2
]}

Lee, Yong-Gu ^{[1
,2
]}

机构：

[1] Gwangju Inst Sci & Technol, Dept Mechatron, Kwangju 500712, South Korea

[2] Gwangju Inst Sci & Technol, Res Ctr Biomol Nanotechnol, Kwangju 500712, South Korea

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 05期

关键词：

D O I：

10.1364/OE.16.003463

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optical forces on a micro-bubble were computed using the Finite Difference Time Domain method. Non-paraxial Gaussian beam equation was used to represent the incident laser with high numerical aperture, common in optical tweezers. The electromagnetic field distribution around a micro-bubble was computed using FDTD method and the electromagnetic stress tensor on the surface of a micro-bubble was used to compute the optical forces. By the analysis of the computational results, interesting relations between the radius of the circular trapping ring and the corresponding stability of the trap were found. (C) 2008 Optical Society of America.

引用

页码：3463 / 3473

页数：11

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