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Enhancement in the magneto-optical effect induced by combining multiple modes in a gold film–supported hybrid periodic gold/magnetic nanorod array
Journal of Optics ( IF 2.1 ) Pub Date : 2024-02-01 , DOI: 10.1088/2040-8986/ad21dd Guoqiang Du , Wenshuo Zhang , Zhifeng Liu , Na Liu , Lin Zhang , Kang An , Weiwei Zhang
Journal of Optics ( IF 2.1 ) Pub Date : 2024-02-01 , DOI: 10.1088/2040-8986/ad21dd Guoqiang Du , Wenshuo Zhang , Zhifeng Liu , Na Liu , Lin Zhang , Kang An , Weiwei Zhang
In this study, the possibility of enhanced transverse magneto-optical Kerr effect (TMOKE) and performance monitoring of a hybrid nanostructure developed by sandwiching a ferromagnetic film within a gold layer and square periodic nanorod arrays, is theoretically investigated. Based on the findings, the TMOKE signal can be enhanced approximately 33 times when compared to the referenced planar film, which is elucidated by the hybrid of modes in the magnetic film region. In addition, a high level of environmental sensor performance is simultaneously achieved by recording the wavelength resonance positions with the variation of refractive index, which is compatible with gaseous medium from 1 to 1.01, indicating that the structure of the proposal will have applications in environmental monitoring.
更新日期：2024-02-01
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