复杂介质传播过程中的相干熵

IF 20.6 1区 物理与天体物理 Q1 OPTICS
Xingyuan Lu, Zhuoyi Wang, Qiwen Zhan, Yangjian Cai, Chengliang Zhao
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引用次数: 0

摘要

.光场因复杂介质(如湍流大气)而产生的变形、闪烁和漂移限制了其实际应用。因此,近年来对随机波动光场不变量的研究引起了广泛关注。相干性是光的一种统计特性,而对其进行全面、定量的表征则极具挑战性。在本文中,我们成功实现了部分相干光束的正交模态分解,并介绍了相干熵作为这种随机波动光场的全局相干特性的应用。研究表明,相干熵通过解开复杂通道,在单元系统中的传播过程中保持一致。作为代表性例子,我们研究了部分相干光束在变形光学系统和湍流介质中传播时相干熵的稳健性。相干熵有望成为评估部分相干光束在复杂通道中传播的关键指标。这项研究为定制的低相干光场在非理想光学系统和复杂介质中的更广泛应用铺平了道路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Coherence entropy during propagation through complex media
. The deformation, flicker, and drift of a light field owing to complex media such as a turbulent atmosphere have limited its practical applications. Thus, research on invariants in randomly fluctuated light fields has garnered considerable attention in recent years. Coherence is a statistical property of light, while its full and quantitative characterization is challenging. Herein, we successfully realize the orthogonal modal decomposition of partially coherent beams and introduce the application of coherence entropy as a global coherence characteristic of such randomly fluctuated light fields. It is demonstrated that coherence entropy remains consistent during propagation in a unitary system by unraveling complex channels. As representative examples, we study the robustness of coherence entropy for partially coherent beams as they propagate through deformed optical systems and turbulent media. Coherence entropy is anticipated to serve as a key metric for evaluating the propagation of partially coherent beams in complex channels. This study paves the way for a broader application scope of a customized low-coherence light field through nonideal optical systems and complex media.
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来源期刊
CiteScore
22.70
自引率
1.20%
发文量
49
审稿时长
18 weeks
期刊介绍: Advanced Photonics is a highly selective, open-access, international journal that publishes innovative research in all areas of optics and photonics, including fundamental and applied research. The journal publishes top-quality original papers, letters, and review articles, reflecting significant advances and breakthroughs in theoretical and experimental research and novel applications with considerable potential. The journal seeks high-quality, high-impact articles across the entire spectrum of optics, photonics, and related fields with specific emphasis on the following acceptance criteria: -New concepts in terms of fundamental research with great impact and significance -State-of-the-art technologies in terms of novel methods for important applications -Reviews of recent major advances and discoveries and state-of-the-art benchmarking. The journal also publishes news and commentaries highlighting scientific and technological discoveries, breakthroughs, and achievements in optics, photonics, and related fields.
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