10.57647/j.jtap.2025.1902.24

Magneto-optical Kerr effect in Metasurface Flexible Microarrays by near field excitation

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  • N. S. Shnan1,
  • N. Roostaei2,
  • S. M. Hamidi*2,
  • V. I. Belotelov3,
  • A. I. Chernov4,
  1. Magneto-Plasmonic Lab, Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran. & Department of Laser Physics, College of Science for Women, University of Babylon, Babylon, Iraq.
  2. Magneto-Plasmonic Lab, Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran.
  3. Vernadsky Crimean Federal University, 4 Vernadskogo Prospekt, Simferopol, Russia. & Interdisciplinary Scientific and Educational School of Moscow University ≪Photonic and Quantum Technologies, Digital Medicine≫, Lomonosov Moscow State University, Leninskie Gori, Moscow, Russia.
  4. Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology (National Research University), 9 Institutskiy Per., Dolgoprudny, Russia.

Received: 2025-03-06

Revised: 2025-03-30

Accepted: 2025-04-06

Published 2025-04-10

Copyright (c) 2025 N. S. Shnan, N. Roostaei, S. M. Hamidi, V. I. Belotelov, A. I. Chernov (Author)

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This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

1.
S. Shnan N, Roostaei N, Hamidi SM, I. Belotelov V, I. Chernov A. Magneto-optical Kerr effect in Metasurface Flexible Microarrays by near field excitation. J Theor Appl phys. 2025 Apr. 10;19(2 (April 2025):1-6. Available from: https://oiccpress.com/jtap/article/view/16594
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Abstract

We have experimentally examined the effect of light localization and near field effect on the magneto-optical
response of the two-dimensional coupled micro-ring periodic structure. For this purpose, we fabricated
main template by laser writing system and stamped it by polydimethylsiloxane-to reach the main twodimensional
microstructures. Thus, we coated them with a gold layer and Ni layer as plasmonic and magnetic
metasurfaces, respectively. We recorded the spectral magneto-optical longitudinal Kerr effect under 200 mT
and the spectrometer’s response in all visible regions under the normal condition as well as pump and probe
system by the aid of green laser as pump. The pump was done via high numerical aperture objective lens to
excite near field of plasmon in a two-dimensional structure. Our results indicate that the localized surface
plasmon resonance, surface lattice resonance as well as electric and magnetic dipole moments enhance the
magneto-optical response in two closer channels in the middle of visible region.

Keywords

  • Two dimensional micro-ring periodic structure,
  • Plasmonic metasurfaces,
  • Dielectric metasurfaces,
  • Magneto-plasmonic,
  • Electric and magnetic dipole
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