基于微腔和光学Tamm态耦合的全光二极管

为了实现全光二极管的功能设计, 采用1维光子晶体非线性微腔, 在1维光子晶体两端设置不同厚度的金属薄膜, 并运用非线性传输矩阵方法研究了该结构的传输属性。结果表明, 两个非对称光学Tamm态和非线性微腔的耦合结构呈现双稳态, 且滞回线的位置与入射方向有关, 具有全光二极管功能; 光二极管的性能依赖于微腔厚度和两个金属薄膜的厚度比。该设计为全光二极管的性能优化提供了参考。

Abstract

In order to achieve all-optical diode function, a 1-D photonic crystal nonlinear microcavity was designed with metal films in different thickness coated on both sides of the photonic crystal. Transmission properties of the microcavity were studied with the nonlinear transfer matrix method. The results show that structure coupling both the nonsymmetric optical Tamm states and nonlinear microcavity shows bistable states with all-optical diode feature, and that the position of hysteresis loop is related with incident direction. The diode performance is dependent on the thickness of nonlinear microcavity and the ratio of thickness of the metal films on both sides. The design provides a reference for the optimization design of all-optical diodes.

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吴义恒, 胡坚霞, 方云团. 基于微腔和光学Tamm态耦合的全光二极管[J]. 激光技术, 2016, 40(1): 11. WU Yiheng, HU Jianxia, FANG Yuntuan. All-optical diode based on coupling of microcavity modes and optical Tamm states[J]. Laser Technology, 2016, 40(1): 11.

基于微腔和光学Tamm态耦合的全光二极管

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