Spin-orbit coupling in free-space Laguerre-Gaussian light beams

被引：48

作者：

Allen, L ^{[1
]}

Lembessis, VE ^{[1
]}

Babiker, M ^{[1
]}

机构：

[1] UNIV ESSEX, DEPT PHYS, COLCHESTER CO4 3SQ, ESSEX, ENGLAND

来源：

PHYSICAL REVIEW A | 1996年 / 53卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.53.R2937

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The expression for the azimuthal force on an atom in a circularly polarized Laguerre-Gaussian beam is shown to contain a term that depends upon the coupling of the intrinsic spin and orbital angular momenta of the light. Consequently, the state of polarization of the light affects the gross motion of the atom and not simply its internal dynamics. The effect arises from the spin-orbit coupling exhibited in the linear momentum density of the free-space mode.

引用

页码：R2937 / R2939

页数：3

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