Spatial solitons in nematic liquid crystals

被引：174
|
作者：
Assanto, G [1 ]
Peccianti, M [1 ]
机构：
[1] Terza Univ Rome, Dept Elect Engn, INFM, NOOEL, I-00146 Rome, Italy
来源：
IEEE JOURNAL OF QUANTUM ELECTRONICS | 2003年 / 39卷 / 01期
关键词：
liquid crystals; nonlinear optics; nonlinear wave propagation; optical solitons; self focusing;
D O I：
10.1109/JQE.2002.806185
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：
Nematic liquid crystals exhibit a saturable nonlinearity, nonlocal in time and in space, owing to light-induced reorientation of the molecular director. In such media, (2 + 1)-dimensional spatial solitons can be obtained at milliwatt-power levels and confine weaker co-polarized signals of different wavelengths, employing either coherent or partially incoherent excitations. Our experimental observations of solitons and related phenomena, ranging from angular steering to mutual interactions, are reviewed. Models are briefly discussed and used to predict and interpret the results.
引用
收藏
页码：13 / 21
页数：9
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