Influence of structural length-scale sensitivities on Hermite–Gaussian rectangular vortex beam propagation in biological tissues

IF 1.2 4区物理与天体物理 Q4 OPTICS

Journal of Modern Optics Pub Date : 2022-11-11 DOI:10.1080/09500340.2022.2146223

Ye Li, Jiao Feng, Baolong Li, Yaqin Xie

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引用次数: 0

Abstract

A modified power spectrum of biological tissues involving upper length-scale and bottom length-scale was introduced. In addition, the analytical expression of Hermite–Gaussian rectangular vortex beam with the parameter ( ) in free space was derived. By this modified power spectrum, we established the normalized probability model of orbital angular momentum (OAM) states for Hermite–Gaussian rectangular vortex beams propagation in biological tissues. The results revealed that Hermite–Gaussian rectangular vortex beam exhibits a better anti-interference performance than Laguerre–Gaussian beam under the same conditions. The Hermite–Gaussian rectangular vortex beam propagates through a biological tissue with large bottom length-scale, small upper length-scale, small characteristic length of heterogeneity, low the fractal dimensions, and weak fluctuation strength, which produces a large normalized probability of signal OAM states. These results are fundamental to improving light propagation in tissue and provide a quantitative guidance for medical imaging and diagnosis.

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结构长度尺度灵敏度对厄米-高斯矩形涡旋光束在生物组织中传播的影响

介绍了一种包含上长度尺度和下长度尺度的改进的生物组织功率谱。此外，导出了自由空间中参数为（）的埃尔米特-高斯矩形涡旋光束的解析表达式。利用这种改进的功率谱，我们建立了埃尔米特-高斯矩形涡旋光束在生物组织中传播的轨道角动量（OAM）态的归一化概率模型。结果表明，在相同条件下，埃尔米特-高斯矩形涡旋光束比拉盖尔-高斯光束具有更好的抗干扰性能。Hermite–Gaussian矩形涡旋光束在底部长度尺度大、上部长度尺度小、异质性特征长度小、分形维数低、波动强度弱的生物组织中传播，这产生了信号OAM状态的大归一化概率。这些结果对改善光在组织中的传播至关重要，并为医学成像和诊断提供了定量指导。

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 Modern Optics 物理-光学

CiteScore

2.90

自引率

0.00%

发文量

审稿时长

2.6 months

期刊介绍： The journal (under its former title Optica Acta) was founded in 1953 - some years before the advent of the laser - as an international journal of optics. Since then optical research has changed greatly; fresh areas of inquiry have been explored, different techniques have been employed and the range of application has greatly increased. The journal has continued to reflect these advances as part of its steadily widening scope. Journal of Modern Optics aims to publish original and timely contributions to optical knowledge from educational institutions, government establishments and industrial R&D groups world-wide. The whole field of classical and quantum optics is covered. Papers may deal with the applications of fundamentals of modern optics, considering both experimental and theoretical aspects of contemporary research. In addition to regular papers, there are topical and tutorial reviews, and special issues on highlighted areas. All manuscript submissions are subject to initial appraisal by the Editor, and, if found suitable for further consideration, to peer review by independent, anonymous expert referees. General topics covered include: • Optical and photonic materials (inc. metamaterials) • Plasmonics and nanophotonics • Quantum optics (inc. quantum information) • Optical instrumentation and technology (inc. detectors, metrology, sensors, lasers) • Coherence, propagation, polarization and manipulation (classical optics) • Scattering and holography (diffractive optics) • Optical fibres and optical communications (inc. integrated optics, amplifiers) • Vision science and applications • Medical and biomedical optics • Nonlinear and ultrafast optics (inc. harmonic generation, multiphoton spectroscopy) • Imaging and Image processing