Continuity equation for the angular momentum and it's application.

被引:0
|
作者
Alexeyev, CN [1 ]
Fridman, YA [1 ]
Alexeyev, AN [1 ]
机构
[1] Simferopol State Univ, Dept Phys, UA-333036 Simferopol, Crimea, Ukraine
关键词
angular momentum; optical fibers; continuity equation; optical vortex; mechanical torque; light-matter interaction;
D O I
10.1117/12.370391
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Macroscopic continuity equation for the angular momentum (AM) of radiation, valid in arbitrary media, is built. The expressions for sources of the AM are obtained. On the basis of the equation the stability of the total AM flux in round weakly guiding optical fibers with elliptically deformed section is investigated. The conservation of the total AM nux of the circular optical vortex in the first order in deformation is demonstrated. On the basis of the equation an approximate expression for the torque acting on an absorbing particle in arbitrary electromagnetic field is obtained. The comparison with the know results is carried out.
引用
收藏
页码:92 / 96
页数:5
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