https://doi.org/10.1140/epjp/s13360-023-04389-0
Regular Article
Coherent control of double-ring perfect optical vortex via hyper-Raman scattering in a Landau-quantized graphene
1
School of Physics and Optoelectronic Engineering, Yangtze University, 434023, Jingzhou, Hubei, China
2
Electronics and Information School, Yangtze University, 434023, Jingzhou, Hubei, China
b
ahushuitao@126.com
e
wenxingyang2@126.com
Received:
12
March
2023
Accepted:
15
August
2023
Published online:
23
August
2023
A scheme for the control of double-ring perfect optical vortex (DR-POV) in a Landau-quantized graphene is proposed. The orbital angular momentum is transferred from a unique DR-POV mode to the generated Raman field via hyper-Raman scattering process. Using experimentally achievable parameters, we identify the condition under which the probe detuning allows us to improve the output intensity and quality of the vortex Raman field and engineer the helical phase wavefront. Furthermore, we find that the intensity and phase patterns of the vortex Raman field can be effectively controlled via adjusting the intensity of the control field. Subsequently, we perform the superposition mode created by the coaxial interference between the generated vortex Raman field and a same frequency DR-POV beam and show interesting optical properties. Our scheme may have potential applications in high-capacity optical communication and optical information process based on POV in 2D material.
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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.
