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Optical Engineering

Strong focusing effect of 660 nm laser by microsized tapered glass tubes with different diameters
Author(s): Chongnan Lin; Xujia Luo; Xiaoyang Zhu; Li Zhu; Hongcheng Wang; Ao Zhang; Runyu Xu; Zheng Qu; Ximeng Chen; Weiyi Zhang; Jianxiong Shao
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Paper Abstract

A laser with a wavelength of 660 nm was focused by microsized tapered glass tubes with different diameters of the exit. By using the 3-μm optical fiber and micrometer displacement stages, we measured the light intensity distribution around the focal spot, the focal distance, and the transmission coefficient of the light transmitted through these tubes. The focusing effect for the glass tubes with smaller outlet diameters of the exit was found to be much stronger than those with larger diameters of the exit. Furthermore, the dependence of the size and distance and the maximum intensity of the focal spot on the tubes’ diameter of exit are obtained.

Paper Details

Date Published: 8 September 2017
PDF: 4 pages
Opt. Eng. 56(9) 096101 doi: 10.1117/1.OE.56.9.096101
Published in: Optical Engineering Volume 56, Issue 9
Show Author Affiliations
Chongnan Lin, Lanzhou Univ. (China)
Xujia Luo, Lanzhou Univ. (China)
East China Univ. of Science and Technology (China)
Xiaoyang Zhu, Nanjing Univ. of Science and Technology (China)
Li Zhu, Nanjing Univ. of Science and Technology (China)
Hongcheng Wang, Hangzhou Dianzi Univ. (China)
Ao Zhang, Lanzhou Univ. (China)
Runyu Xu, Lanzhou Univ. (China)
Zheng Qu, Lanzhou Univ. (China)
Ximeng Chen, Lanzhou Univ. (China)
Weiyi Zhang, Nanjing Univ. of Science and Technology (China)
Jianxiong Shao, Lanzhou Univ. (China)


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