金属/电介质颗粒复合介质光学双稳的温度效应

Temperature effects of optical bistability of metal/dielectric granular composites

应用有效媒质近似,结合自洽平均场理论和谱表示方法,研究了金属电介质颗粒复合介质的光学双稳行为与温度的关系.数值计算了不同的入射频率、体积分数和形状因子下光学双稳的温度效应,结果发现,温度对光学双稳的产生、双稳阈值及阈值宽度有很大影响.

Based on effective medium approximation, self-consistent mean field approximation and the spectral representation method were adopted to investigate the temperature dependence of optical bistability of metal/dielectric granular composite. Numerical calculations were used to find out the temperature effects on optical bistability at different values of incidence frequency, volume fraction and shape factor. The results show that the emergence of optical bistability, optical bistability threshold and threshold width are all greatly dependent upon the temperature.