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为设计高品质的光学滤波器件,利用传输矩阵法理论,通过数值计算模拟的方法,研究垒、阱层介质折射率对光量子阱滤波带宽的调制机制,结果表明,光量子阱滤波带宽对垒、阱层介质折射率的响应相当灵敏:垒层高折射率介质的折射率越大,光量子阱的滤波带宽越窄;垒、阱层介质的折射率和的比值越大,光量子阱的滤波带宽越窄。光量子阱滤波带宽对介质折射率的响应机制,为提高光子晶体光学滤波器件的品质、性能提供方法依据,同时对光量子阱的理论研究也具有积极的指导意义。
In order to design a high quality optical filter device, the modulation mechanism of the refractive index of the barrier layer and the well layer on the bandwidth of the optical quantum well filter is studied by using the transfer matrix method and the numerical simulation method. The results show that the optical quantum well filter bandwidth is opposite to the well layer, The response of the medium refractive index is quite sensitive: the refractive index of the medium with high refractive index in the barrier layer is larger, and the filtering bandwidth of the light quantum well is narrower; and the ratio of the refractive index of the barrier layer and the well layer medium is larger, the filtering bandwidth of the light quantum well is narrower. The response mechanism of the optical quantum well filter bandwidth to the refractive index of the medium provides a method basis for improving the quality and performance of the photonic crystal optical filter device, and also has a positive guiding significance for the theoretical study of the optical quantum trap.