Acta Optica Sinica, Volume. 16, Issue 3, 257(1996)
Conservation of Beam Cross Section Momentum and Momentum Diffraction Divergence
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.
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[in Chinese], [in Chinese], [in Chinese]. Conservation of Beam Cross Section Momentum and Momentum Diffraction Divergence[J]. Acta Optica Sinica, 1996, 16(3): 257
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