REFRACTION OF NONLINEAR LIGHT BEAMS IN NEMATIC LIQUID CRYSTALS

被引：14
|
作者：
Assanto, Gaetano [1 ]
Smyth, Noel F. [2 ,3 ]
Xia, Wenjun [2 ,3 ]
机构：
[1] NooEL, I-00146 Rome, Italy
[2] Univ Edinburgh, Sch Math, Edinburgh EH9 3JZ, Midlothian, Scotland
[3] Univ Edinburgh, Maxwell Inst Math Sci, Edinburgh EH9 3JZ, Midlothian, Scotland
来源：
JOURNAL OF NONLINEAR OPTICAL PHYSICS & MATERIALS | 2012年 / 21卷 / 03期
关键词：
Liquid crystal; nematicon; soliton; modulation theory; refraction; SPATIAL SOLITONS; PROPAGATION; NONLOCALITY; REFLECTION; INTERPLAY; BULK;
D O I：
10.1142/S0218863512500336
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We use modulation theory to analyze the interaction of optical solitons and vortices with a dielectric interface between two regions of nematic liquid crystals. In the analysis we consider the role of nonlocality, anisotropy and nonlinear reorientation and compare modulation theory results with numerical results. Upon interacting with the interface, nematicons undergo transverse distortion but remain stable and eventually return to a steady state, whereas vortices experience an enhanced instability and can break up into bright beams or solitary waves.
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页数：21
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