温度对具有形状分布的金属/陶瓷薄膜光学非线性性质的影响

Effect of temperature on the nonlinear optical properties of metal/cermet films with shape distribution

利用通常的Maxwell-Garnett模型,研究了粒子具有形状分布的无规非线性金属/陶瓷薄膜有效光学非线性性质随温度的变化关系。并给出了金属颗粒具有一定形状分布时两组份复合物的谱密度函数。数值结果表明,光学非线性增强与温度和组分的体积分数都有关,同时将伴随着共振峰的"蓝移"现象。

The temperature dependence of the effective nonlinear optical properties is investigated in the random metal/cermet films with a shape distribution of metal particles. We adopt the normal Maxwell-Garnett model and obtain an analytical expression for the spectral density function of two-component composites in which the metallic inclusions possess a shape distribution P(L) of geometric. Numerical results show that the optical nonlinearity enhancement dependence on the temperature and volume fraction of component, and accompanied by a slight blueshift of the resonant peak.