Focusing properties of Laguerre-Gaussian beams
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摘要: 使用Collins衍射积分公式,推导出无光阑限制情况下,聚焦拉盖尔-高斯光束的相对光强增量和焦移。对有光阑限制的拉盖尔-高斯光束作了详细的数值计算以说明其聚焦特性。
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关键词:
- 拉盖尔-高斯光束 /
- 聚焦特性 /
- 焦移 /
- 无光阑和有光阑限制情况
Abstract: The relative intensity excess and focal shift of focused Laguerre-Gaussian beams in the unapertured case have been derived by using Collins diffraction integral. Detailed numerical caculations have been Performed to illustrate the focusing properties of apertured Laguerre-Gaussian beams. -
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[1] 吕百达.激光光学.第二版.成都:四川大学出版社,1992 [1] Carter W H,Aburdence M F.J O S A,1987;A4(10):1949~1952
[2] Li Y,Wolf E.Opt.Commun,1982;42(3):151~156
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