Research of band gap of 1-D photonic crystals

For photonic crystals whose certain wavelength is forbid band or permit band,how to gain the photonic crystals structure from the photonic band gap structure was studied by means of transfer matrix method.Simulation result was obtained about the photonic crystals of the certain wavelength band gap.The result shows the method can completely gain the photonic crystals whose the certain wavelength is forbid band or permit band.The result conduces to the extensive application of the photonic crystals.