Enhanced Faraday rotation in all-garnet magneto-optical photonic crystal
Enhanced Faraday rotation in all-garnet magneto-optical photonic crystal
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DOI：
10.1063/1.1651324
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发表时间：
2004-02
影响因子：
4
通讯作者：
S. Kahl;A. Grishin
中科院分区：
文献类型：
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作者：
S. Kahl;A. Grishin
到目前为止，磁光光子晶体的研究一直集中在理论研究上，因为最有希望的材料铁榴石还没有现成的多层膜。报道了一种由铋铁石榴石和钇铁石榴石17层异质外延层组成的一维磁光光子晶体的制备和表征。与同等厚度的单层铋铁榴石薄膜相比，在750 nm的设计波长下，磁光法拉第旋转角增加了140%，而透过率仅降低了16%。样品无裂纹，光学透过率和法拉第旋转谱的模拟结果与实验结果吻合较好，表明样品质量高，制备工艺可靠。
Research on magneto-optical photonic crystals has so far been focused on theoretical investigations, because suitable multilayers of iron garnet, the most promising material, have not been readily available. We report the preparation and characterization of a one-dimensional magneto-optical photonic crystal composed of 17 heteroepitaxial layers of bismuth iron garnet and yttrium iron garnet. The magneto-optical Faraday rotation was increased by 140% while transmission decreased by just 16% at the design wavelength of 750 nm as compared with a single-layer bismuth iron garnet film of equivalent thickness. The sample is free of cracks, and good agreement of simulated and experimental spectra of optical transmission and Faraday rotation indicate high quality of the sample and robustness of the preparation technique.