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Updated: Feb 3, 2026
Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
Tunable Coupled-Resonator-Induced Transparency in a Photonic Crystal System Based on a Multilayer-Insulator Graphene
Hanqing Liu1, Jianfeng Tan2, Peiguo Liu3
1College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China. 18674895435@163.com.
Abstract:
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.
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