SINGLE BEAM SELF-INTERACTION IN LANGMUIR-BLODGETT-FILMS

被引：16
作者：
DU, WC
LIU, SH
机构：
[1] Laser and Life Science Institute, South China Normal University, Guangzhou
来源：
OPTICS COMMUNICATIONS | 1993年 / 98卷 / 1-3期
关键词：
D O I：
10.1016/0030-4018(93)90769-2
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Multiple diffraction rings are observed after a pulsed laser beam passes through an absorbing dye LB film. The theoretical analysis, based on the model of transverse self-phase modulation, is also given. The saturated nonlinear refractive index n2 is estimated to be 2.0 x 10(-6) cm2/W from the number of rings induced in the LB films. The main contribution to this larger nonlinearity is believed to be from laser-induced transformation between H-aggregates and monomers of molecules in the LB films.
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页码：117 / 119
页数：3
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