摘要
采用传输矩阵的方法 ,严格导出了一维具有克尔非线性缺陷的光子晶体的局域模频率方程。局域模频率依赖于局域光强。取负克尔系数时 ,随着局域光强的增加 ,局域模频率从下带边出现 ,在带隙间上升 ,最后消失在上带边。在给定入射光频率下 ,随着入射光强的变化 ,系统呈现出双稳态。
The frequency equation for the localized mode of one dimensional photonic crystal with a nonlinear defect is exactly derived by means of a transfer matrix method. The localized mode frequency depends on the localized light intensity. With the increase of the localized light intensity, the localized mode frequency will arise from the lower edge of the gap, then increase, and vanish near the upper edge of the gap for the case that Kerr coefficient is negative. When incident light frequency is given, with the varing incident light intensity, the system exhibits bistability. The bistability feature is due to the shifting of the localized mode frequency.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2002年第4期385-388,共4页
Acta Optica Sinica
基金
教育部骨干教师计划 (2 0 0 0 6 5 J 9)
国家自然科学基金(1994 70 0 5 )
江西省自然科学基金资助课题
