| 光束截面角动量的轴向分量是守恒量 |
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| 引用本文： | 曹清,郭弘,邓锡铭.光束截面角动量的轴向分量是守恒量[J].中国激光,1996,23(2):161-165. |
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| 作者姓名： | 曹清 郭弘 邓锡铭 |
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| 作者单位： | 中国科学院上海光机所高功率激光物理国家实验室 |
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| 基金项目： | 国家高技术863－416资助 |
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| 摘 要： | 证明了对于在真空中稳态传输的光束来说，其光束截面角动量的轴向分量、角动量平方的轴向分量都是与ｚ无关的守恒量；此外还把这一结果推广到傍轴旋对称ＡＢＣＤ光学系统；并对一些与角动量有关的问题进行了讨论。
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| 关 键 词： | 光流体模型，光束截面角动量 |
| 收稿时间： | 1995/3/28 |
The Axial Component of Beam Cross-section Angular Momentum is Conserved |
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| Cao Qing, Guo Hong, Deng Ximing.The Axial Component of Beam Cross-section Angular Momentum is Conserved[J].Chinese Journal of Lasers,1996,23(2):161-165. |
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| Authors: | Cao Qing Guo Hong Deng Ximing |
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| Abstract: | in this peper, we prove that, for any stable propagnting light beam in vacuum or in the symmetrically parexial ADCD system, the z components of beam cross-section angular momentum and angular momentum square are both.invariables which are independent of the position of the cross-section. Furthermore, we still discuss some characters of light beam which are relative to angular momentum. |
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| Keywords: | HMO beam cross-section angular momentum |
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