Peccianti Marco, Assanto Gaetano
National Institute for the Physics of Matter & Department of Electronic Engineering, Terza University of Rome, Via della Vasca Navale 84, 00146 Rome, Italy.
Phys Rev E Stat Nonlin Soft Matter Phys. 2002 Mar;65(3 Pt 2A):035603. doi: 10.1103/PhysRevE.65.035603. Epub 2002 Mar 6.
Nematic liquid crystals exhibit a saturable, non-instantaneous nonlinear response through light-induced reorientation. In such a material, we demonstrate that (2+1)-dimensional spatial solitary waves can be generated at milliwatt power levels not only with a coherent optical beam, but also with incoherent excitations. Self-trapping also allows the efficient guidance of a weak co-polarized probe.
向列型液晶通过光致重取向表现出可饱和的、非瞬时的非线性响应。在这种材料中，我们证明了不仅可以用相干光束，而且可以用非相干激发在毫瓦功率水平下产生（2 + 1）维空间孤立波。自陷还允许对弱的同偏振探针进行有效导引。
