Experimental demonstration of tunable gyromagnetic photonic crystals controlled by dc magnetic fields

被引：29

作者：

Fu, Jin-Xin ^{[1
]}

Liu, Rong-Juan ^{[1
]}

Li, Zhi-Yuan ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Natl Lab Condensed Matter Phys, Lab Opt Phys, Beijing 100190, Peoples R China

来源：

EPL | 2010年 / 89卷 / 06期

基金：

中国国家自然科学基金;

关键词：

FARADAY-ROTATION;

D O I：

10.1209/0295-5075/89/64003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We build a two-dimensional square-lattice gyromagnetic photonic crystal from magneto-optical material of yttrium-iron-garnet (YIG) and demonstrate its tunable electromagnetic properties by placing the photonic crystal in a tunable dc magnetic field and measuring the transmission spectra for microwaves. The magnetic field breaks the intrinsic degeneracy at the M symmetry point between the 2-3 photonic bands and opens a band gap. Near the resonance frequency of YIG, a band gap is also opened due to the metallic properties of YIG. Our work opens a window to exploit magneto-optical photonic crystals as tunable integrated optical devices. Copyright (C) EPLA, 2010

引用

页数：4

共 16 条

[1] Liquid-crystal photonic-band-gap materials: The tunable electromagnetic vacuum [J].