摘要
虚部光子晶体的新颖结构使得它具有很强的频率依赖特性,其掺杂介质的色散关系已成为被广泛研究和应用的障碍.利用线性振子的强迫振动模型和有效介质理论,建立虚部光子晶体掺杂介质的色散模型,该色散模型可推广到掺杂多种共振分子材料的情况.通过拟合得到与实验数据相符的色散曲线,从而验证了模型的有效性,有利于进一步研究虚部光子晶体光学特性.
Because of the novel structure, the imaginary-part photonic crystal （IPPC） has strongly fre- quency-dependent character and some special optical properties. However, the dispersion relation of doped medium of imaginary-part photonic crystal has not been studied clearly,so that it would be an obstacle for wide investigation and application of IPPC. The authors employ linear forced oscillator model and effective medium theory to build up the dispersion model of doped medium of IPPC. The model can be used to more than one kind of doped agent. Finally, the authors compare the simulation dispersion curve from the model with that from experiment and find that they match well. So the dispersion model which the authors build up is available,and it can give some help to get further investigation of IPPC optical properties.
出处
《吉首大学学报（自然科学版）》
CAS
2012年第5期51-55,共5页
Journal of Jishou University(Natural Sciences Edition)
基金
国家自然科学基金(11104083
U0934002)
华南农业大学校长基金资助项目(K08229)
关键词
虚部光子晶体
强迫振动模型
有效介质理论
色散关系
imaginary-part photonic crystal
forced oscillator model
effective medium theory
dispersion relation
