Modulation analysis of nonlinear beam refraction at an interface in liquid crystals

被引：23
作者：
Assanto, Gaetano [1 ]
Smyth, Noel F. [2 ,3 ]
Xia, Wenjun [2 ,3 ]
机构：
[1] Univ Rome Roma Tre, 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：
PHYSICAL REVIEW A | 2011年 / 84卷 / 03期
关键词：
SPATIAL SOLITONS; PROPAGATION;
D O I：
10.1103/PhysRevA.84.033818
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A theoretical investigation of solitary wave refraction in nematic liquid crystals is undertaken. A modulation theory based on a Lagrangian formulation of the governing optical solitary wave equations is developed. The resulting low-dimensional equations are found to give solutions in excellent agreement with full numerical solutions of the governing equations, as well as with previous experimental studies. The analysis deals with a number of types of refraction from a more to a less optically dense medium, the most famous being the Goos-Hanchen shift upon total internal reflection.
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页数：7
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