具有折射率梯度的散射介质中漫射波场的奇异性

IF 0.4 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Moscow University Physics Bulletin Pub Date : 2024-08-15 DOI:10.3103/S0027134924700450

Ya. A. Ilyushin

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引用次数: 0

摘要

摘要本文的主题是折射率梯度介质中的辐射传递。推导了奇异方向附近强度分布的渐近表达式。提出了介质中散射辐射场出现奇异强度分布的临界条件。结果表明，此类介质中的奇异辐射场可以通过辐射源的非奇异配置等方式产生。通过与使用蒙特卡罗统计建模方法进行的数值计算结果直接比较，验证了所获得的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

$Singularities of Diffuse Wave Fields in Scattering Media with Refractive Index Gradients$

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Singularities of Diffuse Wave Fields in Scattering Media with Refractive Index Gradients

The subject of this paper is the radiative transfer in media with refractive index gradients. Asymptotic expressions of the intensity distributions in the vicinity of singular directions are derived. Critical conditions for the occurrence of singular intensity distributions in fields of scattered radiation in a medium are formulated. It is shown that singular radiation fields in such media can be generated, among other things, by nonsingular configurations of radiation sources. The obtained results are verified by direct comparison with the results of numerical calculations using the Monte Carlo statistical modelling method.

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来源期刊

Moscow University Physics Bulletin PHYSICS, MULTIDISCIPLINARY-

CiteScore

0.70

自引率

0.00%

发文量

129

审稿时长

6-12 weeks

期刊介绍： Moscow University Physics Bulletin publishes original papers (reviews, articles, and brief communications) in the following fields of experimental and theoretical physics: theoretical and mathematical physics; physics of nuclei and elementary particles; radiophysics, electronics, acoustics; optics and spectroscopy; laser physics; condensed matter physics; chemical physics, physical kinetics, and plasma physics; biophysics and medical physics; astronomy, astrophysics, and cosmology; physics of the Earth’s, atmosphere, and hydrosphere.