Orbital angular momentum sensing of composite vortex light in a single-layer graphene system

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-02-26 DOI:10.1088/1612-202x/ad2920

S I S Al-Hawary, Farag M A Altalbawy, C Rodriguez-Benites, A Kumar, Wesam R Kadhum, N Zaurbekova, H A Abbas, S J Shoja, A Alawadi, R Sivaraman

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Abstract

This paper explores the impact of orbital angular momentum (OAM) in composite vortex light on the absorption and dispersion characteristics of a weak probe light interacting with a single-layer graphene system. Through systematic investigation, we demonstrate the exceptional control achievable over absorption and dispersion profiles by manipulating the OAM of light. Under resonance conditions for the probe light, transparent regions emerge in the spatial profile of probe absorption, and the number of these transparent regions can be precisely regulated by adjusting the OAM number of the composite vortex light. Conversely, in the case of off-resonance probe light, amplified regions surface in the absorption spectrum, with the number of these regions controllable by the OAM state of the composite vortex light. These findings hold significant implications for optical communication systems, offering a valuable tool for the detection and measurement of the OAM number of composite vortex light, and paving the way for advancements in tailored signal processing and communication technologies.

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单层石墨烯系统中复合涡旋光的轨道角动量感应

本文探讨了复合涡旋光中的轨道角动量（OAM）对与单层石墨烯系统相互作用的弱探测光的吸收和色散特性的影响。通过系统研究，我们证明了通过操纵光的轨道角动量可以实现对吸收和色散曲线的特殊控制。在探针光的共振条件下，探针吸收的空间轮廓中会出现透明区域，而这些透明区域的数量可以通过调整复合涡旋光的 OAM 数量来精确调节。相反，在非共振探针光的情况下，吸收光谱中会出现放大区域，这些区域的数量可由复合涡旋光的 OAM 状态来控制。这些发现对光通信系统具有重要意义，为探测和测量复合涡旋光的 OAM 数量提供了宝贵的工具，并为量身定制的信号处理和通信技术的进步铺平了道路。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.