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一维磁光子晶体实现光隔离的应用研究

The Application Research of One-dimensional Magneto-photonic Crystals for Magneto-optical Isolators

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摘要

采用4×4传输矩阵法研究了两种结构一维磁光子晶体的光隔离特性.结构一在外加磁场与光路光轴方向呈52.0°时,用7.96 μm的总厚度在中心波长附近0.95 nm范围内实现了光隔离,在此范围之内法拉第旋转角和透射率分别在45°~50.65°和97.01%~99.96%之间波动,结构仅包含43层光学薄膜,易于实际制备;结构二在外加磁场与光路光轴方向呈32.7°时,用11.54 μm的总厚度在中心波长附近0.85 nm范围内实现了光隔离,在此范围之内法拉第旋转角和透射率分别在45°~48.55°和98.85%~100%之间波动,结构包含73层光学薄膜,与结构一相比,该结构具有更高的透射率和更平坦的光谱.用这两种结构的一维磁光子晶体代替目前商用磁光隔离器中的块状磁光介质,可实现磁光隔离器的集成化.

Abstract

The 4×4 transfer matrix method was used to investigate the optical isolation property of two different one-dimensional magneto-photonic crystal structures. For the first structure, when the angle between applied magnetic field and optical axis was set as 52.0°, it could realize the optical isolation around 0.95 nm with total thickness of 7.96 μm, possesses Faraday rotation angle and transmittance wave were at 45°~50.65° and 97.01%~99.96%. This structure with 43 layers is applicable in the practical application and fabrication. Regarding the other structure, when the angle between applied magnetic field and optical axis was set as 32.7°, optical isolation reached 0.85 nm broad with total thickness of 11.54 μm, the Faraday rotation angle fluctuated from 45.0°~48.55° and the transmittance ranged from 98.85%~100%. Integrable optical isolators can be accessed by using the two proposed one-dimensional magneto-photonic crystal structures instead of the bulk type magneto-optical materials in bulk type optical isolator in commerce.

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中图分类号:O734

DOI:10.3788/gzxb20144310.1023003

基金项目:国家自然科学基金 (Nos.11247277,61307069,61340053)和山西省自然科学基金 (Nos.2013011007-1,2013021017-3)资助

收稿日期:2014-02-24

修改稿日期:2014-05-06

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费宏明:太原理工大学 新型传感器与智能控制教育部重点实验室,太原 030024太原理工大学 物理与光电工程学院,太原 030024
武建加:太原理工大学 新型传感器与智能控制教育部重点实验室,太原 030024太原理工大学 物理与光电工程学院,太原 030024
杨毅彪:太原理工大学 新型传感器与智能控制教育部重点实验室,太原 030024太原理工大学 物理与光电工程学院,太原 030024
陈智辉:太原理工大学 新型传感器与智能控制教育部重点实验室,太原 030024太原理工大学 物理与光电工程学院,太原 030024
刘欣:太原理工大学 新型传感器与智能控制教育部重点实验室,太原 030024太原理工大学 物理与光电工程学院,太原 030024

联系人作者:费宏明(feihm187491@126.com)

备注:费宏明(1982-),女,副教授,博士,主要研究方向为光子晶体理论与器件设计.

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引用该论文

FEI Hong-ming,WU Jian-jia,YANG Yi-biao,CHEN Zhi-hui,LIU Xin. The Application Research of One-dimensional Magneto-photonic Crystals for Magneto-optical Isolators[J]. ACTA PHOTONICA SINICA, 2014, 43(10): 1023003

费宏明,武建加,杨毅彪,陈智辉,刘欣. 一维磁光子晶体实现光隔离的应用研究[J]. 光子学报, 2014, 43(10): 1023003

被引情况

【1】徐海燕,陈鹤鸣. 大入射角一维磁光子晶体宽带光隔离器. 光子学报, 2015, 44(10): 1023004--1

【2】王重阳,乔玄玄,孙爱华,郭建军,诸跃进,许高杰. SiO2@Fe3O4@C胶体纳米颗粒的制备及其光学性质. 光子学报, 2016, 45(5): 516003--1

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