Coherent control of double-ring perfect optical vortex via hyper-Raman scattering in a Landau-quantized graphene

IF 2.8 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

The European Physical Journal Plus Pub Date : 2023-08-23 DOI:10.1140/epjp/s13360-023-04389-0

Xu Deng, Tao Shui, Tong Zhang, Yi Song, Wen-Xing Yang

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引用次数: 0

Abstract

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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朗道量子化石墨烯中超拉曼散射对双环完美光学涡旋的相干控制

提出了一种控制朗道量子化石墨烯中双环完美光学涡旋(DR-POV)的方案。轨道角动量通过超拉曼散射过程从独特的DR-POV模式转移到生成的拉曼场。利用实验可获得的参数，我们确定了探头失谐的条件，使我们能够提高涡旋拉曼场的输出强度和质量，并设计螺旋相波前。此外，我们发现通过调节控制场的强度可以有效地控制涡旋拉曼场的强度和相型。随后，我们在产生的涡旋拉曼场与相同频率的DR-POV光束之间进行了同轴干涉产生的叠加模式，并显示出有趣的光学特性。该方案在二维材料中基于POV的大容量光通信和光信息处理方面具有潜在的应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

The European Physical Journal Plus PHYSICS, MULTIDISCIPLINARY-

CiteScore

5.40

自引率

8.80%

发文量

1150

审稿时长

4-8 weeks

期刊介绍： The aims of this peer-reviewed online journal are to distribute and archive all relevant material required to document, assess, validate and reconstruct in detail the body of knowledge in the physical and related sciences. The scope of EPJ Plus encompasses a broad landscape of fields and disciplines in the physical and related sciences - such as covered by the topical EPJ journals and with the explicit addition of geophysics, astrophysics, general relativity and cosmology, mathematical and quantum physics, classical and fluid mechanics, accelerator and medical physics, as well as physics techniques applied to any other topics, including energy, environment and cultural heritage.