Dispersion Model of Doped Medium in Imaginary-Part Photonic Crystal

Abstract

Because of the novel structure,the imaginary-part photonic crystal(IPPC) has strongly frequency-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.