Spin-to-orbit conversion at acousto-optic diffraction of light: conservation of optical angular momentum

被引：5
|
作者：
Skab, Ihor [1 ]
Vlokh, Rostyslav [1 ]
机构：
[1] Inst Phys Opt, UA-79005 Lvov, Ukraine
来源：
APPLIED OPTICS | 2012年 / 51卷 / 10期
关键词：
ACOUSTOGYRATION DIFFRACTION; GENERATION; APPEARANCE; CRYSTALS; TORSION;
D O I：
10.1364/AO.51.000C22
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Acousto-optic diffraction of light in optically active cubic crystals is analyzed from the viewpoint of conservation of optical angular momentum. It is shown that the availability of angular momentum in the diffracted optical beam can be necessarily inferred from the requirements of angular momentum conservation law. As follows from our analysis, a circularly polarized diffracted wave should bear an orbital angular momentum. The efficiency of the spin-to-orbit momentum conversion is governed by the efficiency of acousto-optic diffraction.
引用
收藏
页码：C22 / C26
页数：5
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