摘要
本文用速率方程理论分析了激发志光学非线性材料非线性吸收和折射，通过数值模拟讨论了激发态和基态吸收截面、折射度相互关系等参数对非线性吸收和折射性质的影响．并从理论上分析了Ｃ_（６０）甲苯溶液的Ｚ扫描实验曲线，它具有强非线性吸收和弱非线性折射．
It is investigated the source of nonlinear optical absorption and refraction of excited- statenonlinear materials based on the rate-equation theory. The effect of the relative magnitude of cross sections and refrangibilities. Upon the Z-scan curves were discussed through numerical simulation. It is explained the behavior of fullerence-toluence solution in Z-scan experiment, which has a strong nonlinear absorption and weak nonlinear refraction.
出处
《光子学报》
EI
CAS
CSCD
2000年第6期514-516,共3页
Acta Photonica Sinica
关键词
激发态非线性
反饱和吸收
Z扫描
非线性光学
Excited-state absorption
Reverse-saturable absorption
Z-scan
Optical limiting
Fullerene
