Focusing properties of spirally polarized hollow Gaussian beam

Xiumin Gao; Qiufang Zhan; Maojin YunHanming GuoXiangmei DongSonglin Zhuang

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Focusing properties of spirally polarized hollow Gaussian beam

机译：Focusing properties of spirally polarized hollow Gaussian beam

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Focusing properties of spirally polarized hollow Gaussian beam (HGB) are investigated theoretically by vector diffraction theory in this article. Results show that the optical intensity in focal region of spirally polarized HGB can be altered considerably by the beam order, numerical aperture of the focusing system, and spiral parameter that indicates the polarization spiral degree of the spirally polarized HGB. Spiral parameter can induce focal pattern change in axial direction remarkably, while beam order and numerical aperture affect radial foal pattern more obviously. The tunable principle of the focal pattern by spiral parameter differs very considerably under condition of different numerical aperture and beam order. Many novel focal patterns may occur in focal pattern evolution. It was also found that focal shift and focal depth can be altered significantly by spiral parameter and beam order.

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来源
《Optical and Quantum Electronics》 |2010年第15期|827-840|共14页
作者
Xiumin Gao; Qiufang Zhan; Maojin YunHanming GuoXiangmei DongSonglin Zhuang;
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作者单位

College of Physics Science, Qingdao University, Qingdao 266071, China;

University of Shanghai for Science and Technology, Shanghai 200093, China;

Electronics and Information College, Hangzhou Dianzi University, Hangzhou 310018, ChinaChina Standard Software Co., Ltd., Shanghai 200030, People’s Republic of China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类光学;
关键词
Focusing property; Spirally polarized hollow Gaussian beam; Vector diffraction theory;

Focusing properties of spirally polarized hollow Gaussian beam

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