Abstract
Under the influence of a wiggler magnetic field, the phenomenon of second harmonic generation at the metal–semiconductor interface, induced by a surface plasma wave (SPW), has been investigated. Metals like Cu, Ag, and Al, each with a thin layer of n-InSb over it, are considered for our study. Laser light is incident on metal layered on glass prism in attenuated total reflection Kretschmann configuration (ATR), which generates SPW. The SPW further interacts nonlinearly with the electrons of the n-type semiconductor which is layered over the metal, leading to second harmonic generation (SHG). The presence of an external wiggler magnetic field makes the process resonant and helps in phase matching. Relatively more enhancement in the amplitude of the second harmonic is observed for Cu-InSb as compared to Ag-InSb and Al-InSb. Numerical analysis shows that the enhancement in the amplitude of SHG increases with the intensity of the wiggler magnetic field.
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Dua, H.K., Kant, N. & Thakur, V. Second Harmonic Generation Induced by a Surface Plasma Wave on a Metallic Surface in the Presence of a Wiggler Magnetic Field. Braz J Phys 52, 44 (2022). https://doi.org/10.1007/s13538-022-01056-0
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DOI: https://doi.org/10.1007/s13538-022-01056-0