Light scattering by Möbius particles

IF 2.3 3区物理与天体物理 Q2 OPTICS

Journal of Quantitative Spectroscopy & Radiative Transfer Pub Date : 2024-10-05 DOI:10.1016/j.jqsrt.2024.109215

Yehor Surkov , Yuriy Shkuratov , Vadym Kaydash , Yong-Le Pan , Aimable Kalume , Joshua Santarpia , Yongxiang Hu , Gorden Videen

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引用次数: 0

Abstract

Using the Discrete-Dipole Approximation (DDA) we study scattering-angle dependences of the orientationally averaged Mueller matrix elements for small Möbius particles with different chirality. A Möbius particle is a strip of a certain width and thickness, the ends of which are attached to each other after twisting one of them at an angle by a multiple of □. The Mueller matrices M_ik for such particles have 16 non-zero elements. The scattering-angle dependences of the intensity M₁₁, linear polarization degree (-M₁₂/M₁₁), and Circular Intensity Differential Scattering (CIDS = -M₁₄/M₁₁) show their sensitivity to the refractive index and number of the strip twisting. For instance, the CIDS depends significantly on the complex part of the refractive index. Particles with more twists show a decrease in the maximum value of the positive branch of linear polarization and an increase in the width and minimum of the negative branch. The twist parameter's influence on CIDS is non-monotonic, initially increasing and then approaching zero with further twisting.

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莫比乌斯粒子的光散射

利用离散偶极子近似法（DDA），我们研究了具有不同手性的小型莫比乌斯粒子的定向平均穆勒矩阵元素的散射角相关性。莫比乌斯粒子是一个具有一定宽度和厚度的条带，其两端在以 □ 的倍数的角度扭转其中一个条带后相互连接。这种粒子的穆勒矩阵 Mik 有 16 个非零元素。强度 M11、线性极化度 (-M12/M11) 和圆强度差散射 (CIDS = -M14/M11)的散射角相关性显示了它们对折射率和条带扭转次数的敏感性。例如，CIDS 在很大程度上取决于折射率的复数部分。捻度越大的粒子，其线性极化正分支的最大值越小，而负分支的宽度和最小值则越大。扭曲参数对 CIDS 的影响是非单调的，最初会增加，然后随着进一步扭曲而趋近于零。

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

Journal of Quantitative Spectroscopy & Radiative Transfer 物理-光谱学

CiteScore

5.30

自引率

21.70%

发文量

273

审稿时长

58 days

期刊介绍： Papers with the following subject areas are suitable for publication in the Journal of Quantitative Spectroscopy and Radiative Transfer: - Theoretical and experimental aspects of the spectra of atoms, molecules, ions, and plasmas. - Spectral lineshape studies including models and computational algorithms. - Atmospheric spectroscopy. - Theoretical and experimental aspects of light scattering. - Application of light scattering in particle characterization and remote sensing. - Application of light scattering in biological sciences and medicine. - Radiative transfer in absorbing, emitting, and scattering media. - Radiative transfer in stochastic media.