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Tunable 1D nano-photonic filter using Nematic liquid crystal and high-Tc superconductors

机译:使用向列型液晶和高Tc超导体的可调谐一维纳米光子滤波器

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摘要

Abstract In this paper, the properties of hybrid photonic band gaps (PBGs) has been theoretically investigated using the transfer matrix method (TMM) and Gorter Casimir two-fluid model. These 1D photonic quasicrystals are built using the hybrid materials (Bi,Pb)2Sr2Ca2Cu3Ox/anisotropic Nematic liquid crystal layers. Based on the simulation results, a tunable PBG can be achieved within the transmission spectrum with sub comb-like resonant peaks at regular temperature of high Tc superconductor. The PBG properties and the number of resonant peaks are directly modulated by the superconductor temperature, the thickness of the dielectric layers and the lattice parameters of the quasi-periodic structure. In addition, the dependence of the PBGs on the temperature of the Nematic liquid crystal is discussed. The behavior of PBGs undergoing mechanical deformation for both polarization modes and in the presence of an external applied voltage is discussed. These structures can serve as tunable optical stop-band-gap-filters in photonic integrated circuits.
机译:摘要 本文采用传递矩阵法(TMM)和Gorter Casimir双流体模型对混合光子带隙(PBGs)的性质进行了理论研究。这些一维光子准晶体是使用杂化材料(Bi,Pb)2Sr2Ca2Cu3Ox/各向异性向列液晶层构建的。根据仿真结果,在高Tc超导体的常温下,可以在透射光谱内实现具有亚梳状谐振峰的可调PBG。PBG性质和谐振峰的数量直接受超导体温度、介电层厚度和准周期结构晶格参数的影响。此外,还讨论了PBGs对向列液晶温度的依赖性。讨论了PBG在极化模式下和存在外部外加电压时发生机械变形的行为。这些结构可以用作光子集成电路中的可调谐光阻带间隙滤波器。

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