南昌工程学院学报Issue(3)：50-53,57,5.
二维非线性光子晶体点缺陷的双稳态特性
Bistable characteristics of point defect in two dimensional nonlinear photonic crystals
摘要
Abstract
This paper conducts a research on the bistable characteristics of point defect in two dimensional nonlinear photonic crystals with finite-difference time-domain technique. It analyzes the transmission be-havior of input continuous wave with frequency detuning,and the results show that the maximum transmis-sion is detected when the continuous wave reaches the threshold power. What’s more,the defect can be boosted into high transmission state by superposing continuous wave with a high peak-power pulse,and it won’t decrease rapidly until the continuous wave power is brought down to a very low degree. The fre-quency detuning,the resonant frequency,the nonlinear coefficient n2 are needed to characterize a bistable switch. In addition,the dynamic shift of the cavity modes is derived by using the perturbation theory. The conclusion provides some reference for the design of all optical devices based on PC defect.关键词
光子晶体/时域有限差分技术/点缺陷/光学双稳态Key words
photonic crystal/finite-difference time-domain technique/point defect/optical bistable分类
信息技术与安全科学引用本文复制引用
赵年顺,孙剑..二维非线性光子晶体点缺陷的双稳态特性[J].南昌工程学院学报,2014,(3):50-53,57,5.基金项目
安徽省教育厅自然科学研究项目（KJ2009B137）；黄山学院科研项目 （）
