面向宽带光隔离器的一维磁光子晶体结构
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太原理工大学物理与光电工程学院,太原理工大学物理与光电工程学院,太原理工大学物理与光电工程学院,太原理工大学物理与光电工程学院,太原理工大学物理与光电工程学院

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国家自然科学基金(批准号:11247277,61307069)、山西省自然科学基金(批准号:2013011007-1,2013021017-3,2011011003-1)资助的课题


One-dimensional magneto-photonic crystals with flat-top responses for Magneto-optical isolators
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Department of Physics and Optoelectronics,Taiyuan University of Technology,Department of Physics and Optoelectronics,Taiyuan University of Technology,Department of Physics and Optoelectronics,Taiyuan University of Technology,,Department of Physics and Optoelectronics,Taiyuan University of TechnologyDepartment of Physics and Optoelectronics,Taiyuan University of Technology,Department of Physics and Optoelectronics,Taiyuan University of Technology

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    摘要:

    文章采用4×4传输矩阵法研究了两种一维磁光子晶体结构的宽带光隔离特性.结构一在外加磁场与光路光轴方向呈41.0°角时, 用22.90μm的总厚度实现了3nm的宽带光隔离, 且在宽带范围内法拉第旋转角和透射率分别在45°~48.89°和99.86~99.95%之间波动, 此结构在宽带范围内均可实现稳定的光隔离; 结构二在外加磁场与光路光轴方向平行时, 用18.61μm的总厚度实现了1nm的宽带光隔离, 且在宽带范围内法拉第旋转角和透射率分别在45.83°~45.89°和98.53~98.78%之间波动, 此结构无需调节外加磁场角度即可实现光隔离.

    Abstract:

    The 4×4 transfer matrix method is used to investigate the broadband optical isolation property of two different one-dimensional magneto-photonic crystal structures. The results show that the first structure makes broadband optical isolation come true. When the angle between the applied magnetic field and optical axis is set as 41.0°, its bandwidth achieved 3nm with a 22.90μm-thickness, the Faraday rotation angle fluctuated from 45° to 48.89° and transmittance achieved 99.86~99.95%. The other structure with total thickness of 18.61μm achieves a 1nm-bandwidth optical isolation with the Faraday rotation angle fluctuated from 45.83° to 45.89° and transmittance fluctuated from 98.53% to 98.78%, when the applied magnetic field is nearly parallel to the optical axis. This structure ensures the achievement of optical isolation without adjusting the applied magnetic field.

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费宏明,武建加,刘欣,陈智辉,杨毅彪.面向宽带光隔离器的一维磁光子晶体结构[J].红外与毫米波学报,2015,34(3):340~346]. FEI Hong-Ming, WU Jian-Jia, LIU Xin, CHEN Zhi-Hui, YANG Yi-Biao. One-dimensional magneto-photonic crystals with flat-top responses for Magneto-optical isolators[J]. J. Infrared Millim. Waves,2015,34(3):340~346.]

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  • 收稿日期:2013-11-07
  • 最后修改日期:2013-12-24
  • 录用日期:2013-12-26
  • 在线发布日期: 2015-09-28
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