https://doi.org/10.1140/epjp/s13360-023-04595-w
Regular Article
Negative refraction achieved by inducing chirality in monolayer graphene through Raman gain mechanism
1
School of Electrical and Information Engineering, Hubei University of Automotive Technology, 442002, Shiyan, People’s Republic of China
2
School of Mathematics, Physics and Optoelectronics Engineering, Hubei University of Automotive Technology, 442002, Shiyan, People’s Republic of China
3
Quantum Optics Lab. Department of Physics, COMSATS University Islamabad, Islamabad, Pakistan
4
College of Science, Zhongyuan University of Technology, Zhongyuan Road, 450000, Zhengzhou, People’s Republic of China
5
Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, 430205, Wuhan, People’s Republic of China
6
Ministry of Education Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, School of Physics, Xi’an Jiaotong University, 710049, Xi’an, People’s Republic of China
Received:
20
July
2023
Accepted:
12
October
2023
Published online:
5
November
2023
We investigate negative refraction directed by chirality under the condition of Raman gain process in Landau level of graphene. The coupling of magnetic dipole transition with an electric dipole transition leads to Raman gain induced chirality and observe negative refraction with positive permeability. The key idea of our system is to avoid absorption and get negative refraction without the need of simultaneous negative permittivity and permeability. We establish that negative index for refraction may be achieved with minimal absorption by using magnetoelectric cross-coupling to couple two mutually interfering Raman transitions via magnetic-dipole transition. Further, we examine the negative refraction via Doppler-broadened medium. Our proposed scheme may use to develop perfect lenses made from negative index materials that may provide a novel technique to resolve nanoscale objects, with far-reaching practical consequences.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. 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.
