An easier way to improvement the trapping performance of optical tweezers by donut-shaped beam

Che Liang Tsai*, Hang Ping Huang, Long Hsu, Ken-Yuh Hsu

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

In optical tweezers, it can be comprehended that the larger the inclination angle between the condensed laser beam and the optical axis contributes more to axial trapping force, while the central part of laser beam with smaller inclination angle contributes more transverse trapping force. Therefore donut-shaped beam is used to improve the problem of lessaxial trapping for common optical tweezers. Some research reports have shown that the efficiency of a trapping force can be enhanced by using a donut-shaped beam. In this paper we present the dependence of the axial and the transverse components of a trapping force on the configuration of a focused donut-shaped beam. The simulation result will provide a simple and easy guide for optical tweezers users to adjust the configuration of a focused donut-shaped beam for optimal trapping performance.

原文English
主出版物標題Optical Trapping and Optical Micromanipulation VII
DOIs
出版狀態Published - 27 10月 2010
事件Optical Trapping and Optical Micromanipulation VII - San Diego, CA, United States
持續時間: 1 8月 20105 8月 2010

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
7762
ISSN(列印)0277-786X

Conference

ConferenceOptical Trapping and Optical Micromanipulation VII
國家/地區United States
城市San Diego, CA
期間1/08/105/08/10

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