利用调Q倍频ns/ps Nd:YAG激光脉冲,使用Z-扫描技术和光限幅实验研究了新型的基于富勒烯C60结构体系的金纳米粒子合成物的非线性折射和光限幅特性.实验结果表明材料的非线性折射主要起源于材料中的金纳米粒子所产生的表面等离子体,材料的光限幅特性好于C60甲苯溶液,并对限幅机理进行了讨论.

Nonlinear refraction and optical limiting properties in the novel nanocomposite based on C 60 structured system with gold nanoparticles were investigated by Z-scan technique and optical limiting experiment with Q switched, double frequency ns/ps Nd∶YAG laser pulses. The experimental results show that the nonlinear refraction mainly results from the surface plasmon resonance of gold nanoparticles in the nanocomposite. The optical limiting properties of the nanocomposite is stronger than that of C 60 toluene solution. The optical limiting mechanisms were discussed.