Focal shift of Lorentz beams focused by an aperture-lens system(洛伦兹光束经光阑-透镜系统的焦移特性)
基于柯林斯积分公式和光阑函数的复高斯展开,导出了洛伦兹光束经光阑-透镜光学系统的近似解析传输公式.运用所得到的近似解析表达式,考察了洛伦兹光束的焦移特性.数值计算结果表明洛伦兹光束的焦移量依赖于菲涅耳数和光阑-透镜的分离距离.文中,洛伦兹光束的焦移特性也和相应高斯光束的作了比较.这一研究有益于那些发散程度较大的激光光束的实际应用....
Main Authors: | XUYi-qing(徐一清), ZHOUCuo-quan(周国泉) |
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Format: | Article |
Language: | zho |
Published: |
Zhejiang University Press
2010-05-01
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Series: | Zhejiang Daxue xuebao. Lixue ban |
Subjects: | |
Online Access: | https://doi.org/10.3785/j.issn.1008-9497.2010.03.007 |
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