| 傍轴黎曼几何光学．Ⅳ．两种光束质量因子 |
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| 引用本文： | 邓锡铭,郭弘,曹清.傍轴黎曼几何光学．Ⅳ．两种光束质量因子[J].中国激光,1996,23(8):727-731. |
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| 作者姓名： | 邓锡铭 郭弘 曹清 |
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| 作者单位： | 高功率激光物理国家实验室，中国科学院上海光机所，华南师范大学量子电子学研究所 |
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| 基金项目： | 国家863计划416主题 |
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| 摘 要： | 引用光流体模型［２］的光束径向能量的不变积分分别讨论了光束波面畸变和振幅分布不均匀对光束质量因子Ｍ２的影响；引入了光束质量因子的两种新定义，并讨论了这两个新质量因子与Ｍ２的关系。
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| 关 键 词： | 光束传输，广义厄米－高斯光束，光束质量 |
| 收稿时间： | 1996/2/14 |
Paraxial Riemannian Geometrical Optics Ⅳ. Two Kinds of Beams Quality Factors |
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| Deng Ximing,Guo Hong,Cao Qing.Paraxial Riemannian Geometrical Optics Ⅳ. Two Kinds of Beams Quality Factors[J].Chinese Journal of Lasers,1996,23(8):727-731. |
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| Authors: | Deng Ximing Guo Hong Cao Qing |
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| Abstract: | In this paper, by using the hydrodynamical model of optics and the invariant integral of the radial component E⊥ of the beam cross-section energy, we analyze the influences on the beam quality M2 factor from the wave surface distortion and from the nonuniform amplitude distribution respectively, introduce two new kinds of definitions of the beam quality, and discuss the relation among these two definitions and the M2 factor. |
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| Keywords: | beam propagation generalized Hermite-Gaussian beam beam quality |
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