光学学报, 1996, 16 (3): 257, 网络出版: 2006-12-04
光束截面的动量守恒及动量衍射发散度
Conservation of Beam Cross Section Momentum and Momentum Diffraction Divergence
摘要
在忽略了瞬逝波的条件下，证明真空中单色标量光场的光束截面的动量及其任一分量都与轴向坐标无关，为守恒量；文中还给出了动量衍射发散度的表达式。
Abstract
In this paper, it is proved that the beam cross section momentum and its any component of monochromatic field in vacuum are all invariances and independent of the position of the cross section, provided that the evanescent waves of the plane wave spectrum of the beam are ignored. The expression of the beam momentum diffraction divergence is derived.
参考文献
曹清, 郭弘, 邓锡铭. 光束截面的动量守恒及动量衍射发散度[J]. 光学学报, 1996, 16(3): 257. 曹清, 郭弘, 邓锡铭. Conservation of Beam Cross Section Momentum and Momentum Diffraction Divergence[J]. Acta Optica Sinica, 1996, 16(3): 257.
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