Multiple scattering theory in one dimensional space and time dependent disorder: average field [Invited]

IF 2.8 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Express Pub Date : 2024-02-29 DOI:10.1364/ome.517488

Alexandre Selvestrel, Julia Rocha, Rémi Carminati, and Romain Pierrat

引用次数: 0

Abstract

We theoretically study the propagation of light in one-dimensional space- and time-dependent disorder. The disorder is described by a fluctuating permittivity ε(x, t) exhibiting short-range correlations in space and time, without cross correlation between them. Depending on the illumination conditions, we show that the intensity of the average field decays exponentially in space or in time, with characteristic length or time defining the scattering mean-free path ℓ_s and the scattering mean-free time τ_s. In the weak scattering regime, we provide explicit expressions for ℓ_s and τ_s, that are checked against rigorous numerical simulations.

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一维空间中的多重散射理论与时间相关无序：平均场 [特邀]

我们从理论上研究了光在一维随空间和时间变化的无序状态中的传播。无序由波动介电常数ε(x, t)描述，在空间和时间上表现出短程相关性，但它们之间没有交叉相关性。根据照明条件的不同，我们发现平均场的强度在空间或时间上呈指数衰减，其特征长度或时间定义了散射平均自由路径 ℓs 和散射平均自由时间 τs。在弱散射机制中，我们提供了 ℓs 和 τs 的明确表达式，并通过严格的数值模拟进行了检验。

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

Optical Materials Express MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS

CiteScore

5.50

自引率

3.60%

发文量

377

审稿时长

1.5 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optical Materials Express (OMEx), OSA''s open-access, rapid-review journal, primarily emphasizes advances in both conventional and novel optical materials, their properties, theory and modeling, synthesis and fabrication approaches for optics and photonics; how such materials contribute to novel optical behavior; and how they enable new or improved optical devices. The journal covers a full range of topics, including, but not limited to: Artificially engineered optical structures Biomaterials Optical detector materials Optical storage media Materials for integrated optics Nonlinear optical materials Laser materials Metamaterials Nanomaterials Organics and polymers Soft materials IR materials Materials for fiber optics Hybrid technologies Materials for quantum photonics Optical Materials Express considers original research articles, feature issue contributions, invited reviews, and comments on published articles. The Journal also publishes occasional short, timely opinion articles from experts and thought-leaders in the field on current or emerging topic areas that are generating significant interest.