Surface Plasmon Induced Polarization Filter Based on Au Wires and Liquid Crystal Infiltrated Photonic Crystal Fibers

被引:17
作者
Chen, Hailiang [1 ]
Li, Shuguang [1 ]
Ma, Mingjian [1 ]
Li, Jianshe [1 ]
Fan, Zhenkai [1 ]
Shi, Min [1 ]
机构
[1] Yanshan Univ, Coll Sci, Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China
基金
中国国家自然科学基金;
关键词
Polarization filter; Photonic crystal fiber; Surface plasmon;
D O I
10.1007/s11468-015-0070-8
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The polarization filter characteristics of Au wires and liquid crystal infiltrated photonic crystal fibers are investigated by using the finite element method. The nematic liquid crystal of E7 being injected into cladding air holes is benefit to induce large birefringence under controllable electrical field. The simulation results show that the surface plasmon resonance is strongly inspired by core modes in y-polarized direction. Meanwhile, the coupling between core modes in x-polarized direction and surface plasmon polaritons modes is faint. The confinement losses can achieve 446 dB/cm in y-polarized direction and 0.8 dB/cm in x-polarized direction at wavelength of 1550 nm in one of our designed fiber. The effects of fiber structural parameters and temperature are investigated with a view of tuning and optimizing the confinement loss spectrum. Own to the large contrast of confinement losses in two orthogonal directions, the designed Au wires and liquid crystal infiltrated photonic crystal fibers promise candidate for tunable polarization filter devices.
引用
收藏
页码:459 / 464
页数:6
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