Solitary wave propagation and steering through light-induced refractive potentials

被引:26
作者
Assanto, Gaetano [1 ]
Skuse, Benjamin D. [2 ,3 ]
Smyth, Noel F. [2 ,3 ]
机构
[1] Univ Rome Roma Tre, Dept Elect Engn, Nonlinear Opt & OptoElect Lab, INFN CNISM, 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 | 2010年 / 81卷 / 06期
基金
英国工程与自然科学研究理事会;
关键词
SPATIAL SOLITONS; NONLINEARITY; REFLECTION; NEMATICONS;
D O I
10.1103/PhysRevA.81.063811
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The steering of a self-guided beam in a dye-doped nematic liquid crystal caused by an external illumination (control beam) that induces changes in the refractive index of the medium is theoretically analyzed. The interaction between the control beam and the dye molecules modifies the anchoring of the nematic molecules, so changing the director orientation in the bulk of the medium. Beam evolution is investigated by use of a modulation theory approach. It is found that the beam trajectory is independent of the beam profile, as long as this profile is self-similar. Solutions obtained from the modulation theory approach are in excellent agreement with numerical solutions.
引用
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页数:7
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