Frequency-astigmatism asymmetric nonlinear conversion of structured light lasers

IF 3.5 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2024-08-29 DOI:10.1063/5.0159662

Jing Pan, Hao Wang, Zijian Shi, Yijie Shen, Xing Fu, Qiang Liu

引用次数: 0

Abstract

Nonlinear optics of structured light carrying orbital angular momentum (OAM) has recently led to intriguing fundamental physical effects in light–matter interactions and advanced applications from classical imaging to quantum informatics. However, the mutual interaction between spatial mode and frequency conversions in nonlinear processes is still elusive. In this work, we go beyond only considering OAM and frequency in nonlinear structured light conversion and investigate the complex mode evolution in cascaded nonlinear frequency conversion and spatial astigmatic mode conversion. In particular, we unveil a generalized law of nonlinear structured light from experiments and theories, that the converted modes are highly related to the sequence of frequency and spatial mode conversions, obeying an inherent (non)commutative rule in which. This effect not only creates extended structured laser modes but serves as regular rules in nonlinear optics.

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结构光激光器的频率-远视非对称非线性转换

携带轨道角动量（OAM）的结构光的非线性光学最近在光-物质相互作用中产生了引人入胜的基本物理效应，以及从经典成像到量子信息学的先进应用。然而，非线性过程中空间模式和频率转换之间的相互影响仍然难以捉摸。在这项工作中，我们不仅考虑了非线性结构光转换中的 OAM 和频率，还研究了级联非线性频率转换和空间散光模式转换中的复杂模式演化。特别是，我们从实验和理论中揭示了非线性结构光的一般规律，即转换后的模式与频率和空间模式转换的顺序高度相关，服从其中固有的（非）交换规则。这种效应不仅产生了扩展的结构激光模式，而且成为非线性光学中的常规规则。

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

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.