Observation of Self-Induced Optical Vortex Precession

被引：1
|
作者：
El Ketara, Mohamed [1 ]
Brasselet, Etienne
机构：
[1] Univ Bordeaux, Lab Ondes & Mat Aquitaine, UMR 5798, F-33400 Talence, France
来源：
PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 23期
关键词：
LIQUID-CRYSTALS; LIGHT; GENERATION; PATTERNS; ROTATION; PHASE; BEAMS;
D O I：
10.1103/PhysRevLett.110.233603
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report on the observation of self-induced precession of an optical vortex as a result of the nonlinear interaction between light and liquid crystals. The phenomenon corresponds to an instability for the spin-orbit interaction of light that manifests as a spontaneous axial symmetry breaking, which leads to the orbital motion of the optical vortex around the beam propagation. A nonlinear spin Hall effect of light is experimentally identified, thereby unveiling an original demonstration of spin to extrinsic orbital light angular momentum self-conversion.
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页数：5
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