https://doi.org/10.1140/epjp/s13360-024-05602-4
Regular Article
Enhanced Faraday rotation via Kerr nonlinearity in graphene metasurface
1
Department of Physics, Abbottabad University of Science and Technology, P.O. Box 22500, Havellian, KP, Pakistan
2
Department of Physics, University of Buner, 19220, Sowari Buner, KPK, Pakistan
3
Institute of Materials, Minerals and Mining Engineering, Abbottabad University of Science & Technology, Havelian, KPK, Pakistan
4
Department of Physics, Zhejiang Normal University, 321004, Jinhua, Zhejiang, China
5
Zhejiang Institute of Photoelectronics and Zhejiang Institute for Advanced Light Source, Zhejiang Normal University, 321004, Jinhua, Zhejiang, China
6
Faculty of Physics, Semnan University, P.O. Box 35195-363, Semnan, Iran
b
yamanuom@gmail.com
g
haddadi@semnan.ac.ir
Received:
1
May
2024
Accepted:
29
August
2024
Published online:
11
September
2024
We study the nonlinear optical properties of graphene to explore the Faraday rotation (FR) of a terahertz light pulse propagating through its anisotropic pattern. The weak light’s FR angle is modified and controlled by varying the periodic width of the patterned graphene, probe detuning with respect to probe light frequency, magnetic field, and Kerr nonlinearity. By maintaining a 
period of the patterned graphene, one can observe the propagating light’s FR angle up to 4 rad at a Kerr field of 3 MHz. Our findings show that changing the probe field detuning can alter the direction of the FR angle. Moreover, we investigate how light propagates through the proposed system with periodic graphene width, Kerr field, and magnetic field.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
