Generation of structured beams in large-Fresnel number degenerate cavities and beam transformation with orbital angular momentum

T. H. Lu, Y. C. Lin, Yung-Fu Chen, Kai-Feng Huang

研究成果: Conference contribution同行評審

摘要

We employ a large-Fresnel-number laser system to demonstrate the three-dimensional optical coherent waves localized on Lissajous and trochoidal parametric surfaces with Lissajous and trochoidal transverse patterns in degenerate cavities. The coherent structured beams are verified to be composed of degenerate Hermite-Gaussian and Laguerre-Gaussian modes with different longitudinal indices resulted from longitudinal-transverse coupling. As well known, the Hermite- Gaussian modes can be converted into Laguerre-Gaussian modes possessing orbital angular momentum by use of a pair of cylindrical lens. Consequently, we make use of cylindrical lenses to transform the Lissajous structured beams superposed of degenerate Hermite-Gaussian modes into the intriguing trochoidal structured beam possessing optical orbital angular momentum.

原文English
主出版物標題Complex Light and Optical Forces IV
DOIs
出版狀態Published - 2010
事件Complex Light and Optical Forces IV - San Francisco, CA, 美國
持續時間: 27 1月 201028 1月 2010

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
7613
ISSN(列印)0277-786X

Conference

ConferenceComplex Light and Optical Forces IV
國家/地區美國
城市San Francisco, CA
期間27/01/1028/01/10

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