中国激光, 1996, 23 (2): 161, 网络出版: 2006-12-04
光束截面角动量的轴向分量是守恒量
The Axial Component of Beam Cross-section Angular Momentum is Conserved
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。
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.
参考文献
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. 曹清, 郭弘, 邓锡铭. The Axial Component of Beam Cross-section Angular Momentum is Conserved[J]. Chinese Journal of Lasers, 1996, 23(2): 161.