| 无衍射光束参数的透镜变换 |
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| 引用本文： | 赵斌,周莉萍,张青,李柱.无衍射光束参数的透镜变换[J].华中科技大学学报(自然科学版),1997(3). |
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| 作者姓名： | 赵斌 周莉萍 张青 李柱 |
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| 作者单位： | 机械科学与工程学院 |
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| 摘 要： | 论述无衍射光束的基本参数的确定，提出用望远系统来改变无衍射光束参数的新方法，给出了各参数的变换公式．利用该方法可灵活方便地获得所需无衍射光的无衍射距离和中心光斑半径
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| 关 键 词： | 无衍射光 透镜变换 axicon透镜 |
Lens Transformation of Parameters of the Non Diffracting Beam |
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| Zhao Bin College of Mech. Sci. & Eng.,HUST,Wuhan ,China. Zhou Liping Zhang Qing Li Zhu.Lens Transformation of Parameters of the Non Diffracting Beam[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1997(3). |
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| Authors: | Zhao Bin College of Mech Sci & Eng HUST Wuhan China Zhou Liping Zhang Qing Li Zhu |
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| Institution: | Zhao Bin College of Mech. Sci. & Eng.,HUST,Wuhan 430074,China. Zhou Liping Zhang Qing Li Zhu |
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| Abstract: | For the non diffracting beam generated by an axicon lens, the central spot diameter and non diffracting distance are fixed. When there is a new demand for these parameters in practical application, a new axicon lens has to be prepared, causing inconvenience. A new way to change the parameters of the non diffracting beam using a telescope system with a spherical lens is proposed. It is based on the relationship of lens transformation between the non diffracting beam and ring light source. The non diffracting beam is transformed into a ring light source first by the first lens of the telescope and then into a new non diffracting beam with different parameters by the second lens of a different focus. The new parameters are determined by the ratio of the focal distances of the two lenses.. |
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| Keywords: | non diffracting beam lens transformation axicon lens |
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