Frequency shifting of light via multiple ultrasound waves in scattering media.

IF 2.9 2区 医学 Q2 BIOCHEMICAL RESEARCH METHODS Biomedical optics express Pub Date : 2024-11-27 eCollection Date: 2024-12-01 DOI:10.1364/BOE.541721
Adam Kinos
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Abstract

We derive analytical expressions to describe how light is frequency-shifted when interacting with ultrasound within scattering media, due to the modulation of the refractive index induced by the ultrasound pressure waves. The model is validated through Monte Carlo simulations, works for high ultrasound pressures, and allows for many simultaneous ultrasound waves or frequency components, which is important due to the non-linear propagation effects in tissue. We also provide critical insights into how the ultrasound properties can be optimized for an enhanced efficiency of the light to be frequency-shifted, facilitating applications in ultrasound optical tomography and other photonic diagnostic techniques.

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通过散射介质中的多重超声波实现光的移频。
我们推导出分析表达式来描述光在散射介质中与超声波相互作用时,由于超声压力波引起的折射率调制而产生的频率偏移。该模型通过蒙特卡罗模拟进行了验证,适用于高超声波压力,并允许同时存在多个超声波或频率分量,这对组织中的非线性传播效应非常重要。我们还就如何优化超声特性以提高光的移频效率提供了重要见解,从而促进了超声光学断层扫描和其他光子诊断技术的应用。
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来源期刊
Biomedical optics express
Biomedical optics express BIOCHEMICAL RESEARCH METHODS-OPTICS
CiteScore
6.80
自引率
11.80%
发文量
633
审稿时长
1 months
期刊介绍: The journal''s scope encompasses fundamental research, technology development, biomedical studies and clinical applications. BOEx focuses on the leading edge topics in the field, including: Tissue optics and spectroscopy Novel microscopies Optical coherence tomography Diffuse and fluorescence tomography Photoacoustic and multimodal imaging Molecular imaging and therapies Nanophotonic biosensing Optical biophysics/photobiology Microfluidic optical devices Vision research.
期刊最新文献
Frequency shifting of light via multiple ultrasound waves in scattering media. Visually relevant on-bench through-focus analysis of intraocular lenses. In vivo dual-plane 3-photon microscopy: spanning the depth of the mouse neocortex. Inverted meniscus IOLs reduce image shifts in the periphery compared to biconvex IOLs. Near-infrared diffuse optical characterization of human thyroid using ultrasound-guided hybrid time-domain and diffuse correlation spectroscopies.
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