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Tunable Coupled-Resonator-Induced Transparency in a Photonic Crystal System Based on a Multilayer-Insulator Graphene Stack

机译:基于多层绝缘体石墨烯堆叠的光子晶体系统中可调谐耦合谐振器的透明性

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摘要

We achieve the effective modulation of coupled-resonator-induced transparency (CRIT) in a photonic crystal system which consists of photonic crystal waveguide (PCW), defect cavities, and a multilayer graphene-insulator stack (MGIS). Simulation results show that the wavelength of transparency window can be effectively tuned through varying the chemical potential of graphene in MGIS. The peak value of the CRIT effect is closely related to the structural parameters of our proposed system. Tunable Multipeak CRIT is also realized in the four-resonator-coupled photonic crystal system by modulating the chemical potentials of MGISs in different cavity units. This system paves a novel way toward multichannel-selective filters, optical sensors, and nonlinear devices.
机译:我们在由光子晶体波导(PCW),缺陷腔和多层石墨烯-绝缘体堆叠(MGIS)组成的光子晶体系统中,实现了耦合谐振器感应的透明性(CRIT)的有效调制。仿真结果表明,通过改变MGIS中石墨烯的化学势,可以有效地调节透明窗的波长。 CRIT效应的峰值与我们提出的系统的结构参数密切相关。通过调制不同腔体单元中MGIS的化学势,可在四谐振器耦合光子晶体系统中实现可调谐Multipeak CRIT。该系统为多通道选择性滤光片,光学传感器和非线性器件铺平了新的道路。

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