Finite-difference time-domain analysis of band structures in one-dimensional Kerr-nonlinear photonic crystals
نویسندگان
چکیده
We present a new approach for analyzing band structures in one-dimensional Kerr-nonlinear photonic crystals. It combines the finite-difference time-domain method, based on the numerical simulation of oscillating dipole radiation, with the Kerr-nonlinear model. The approach is applied to analyze the band structures in Kerr-nonlinear one-dimensional photonic crystals as a function of the intensity of the oscillating dipole. We find that these bands are dynamically red-shifted with regard to the bands in linear one-dimensional photonic crystals. The proposed approach will help to understand such phenomena as intensity-driven optical limiting and all-optical switching with Kerr-nonlinear photonic crystals. 2004 Elsevier B.V. All rights reserved. PACS: 42.65.Pc; 42.65; 42.70.Qs
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