Magneto-optical Goos-Hanchen shift in uniaxial anisotropic epsilon-near-zero metamaterials

被引：0
作者：
Sun, Yi [1 ]
Zhang, Zan [1 ]
Zhang, Jing [1 ]
Yang, Chenfei [1 ]
Zhuang, Chuhong [1 ]
Deng, Dongmei [1 ]
机构：
[1] South China Normal Univ, Sch Informat & Optoelect Sci & Engn, Guangzhou, Peoples R China
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2025年 / 58卷 / 03期
关键词：
magneto-optical Goos-H & auml; nchen shift; magneto-optical Kerr effect; epsilon-near-zero metamaterial; surface plasmon resonance; biosensor; SURFACE-PLASMON RESONANCE; SENSOR; MODE; GRAPHENE; BEAM;
D O I：
10.1088/1361-6463/ad89d5
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We theoretically investigate the enhancement of the magneto-optical Goos-Hanchen (MOGH) shift in multilayer structure combining uniaxially anisotropic epsilon-near-zero (ENZ) metamaterials with magneto-optical (MO) materials. The structure enables the excitation of MO surface plasmon resonance (MOSPR) without the need for a prism or grating coupler, thereby achieving a significant enhancement of the MOGH shift. The effect of the thickness of the ENZ layer and the type of magnetic metal in this structure on the MOGH shift is also discussed. Based on the above structure, we design a high-sensitivity miniature biosensor that is used for the detection of hemoglobin concentration in human blood. The maximum sensitivity achievable with this sensor is 1.4 x 10(6) lambda /RIU. The results of this investigation contribute to the development of biosensors towards miniaturization and integration.
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页数：10
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