Spectrally encoded flow cytometry using few-mode fiber collection.

IF 2.9 2区 医学 Q2 BIOCHEMICAL RESEARCH METHODS
Biomedical optics express Pub Date : 2024-12-16 eCollection Date: 2025-01-01 DOI:10.1364/BOE.544465
Reut Friedman, Dvir Yelin
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引用次数: 0

Abstract

In fiber-based confocal microscopy, using two separate fibers for illumination and collection enables the use of a few-mode fiber to achieve an effect similar to opening the pinhole in a conventional confocal microscope. In some Fourier-domain applications, however, or when a spectral measurement is involved, the coherent light detection would lead to noticeable spectral modulation artifacts that result from differential mode delay, an effect caused by the multimode propagation in the collection fiber. After eliminating these artifacts by using mode-dependent polarization control, we demonstrate effective spectrally encoded imaging with improved signal efficiency and lower speckle noise, and only a minor, negligible reduction in lateral and axial resolutions.

利用少模光纤采集的频谱编码流式细胞术。
在基于光纤的共聚焦显微镜中,使用两根独立的光纤进行照明和采集,使得使用少模光纤可以达到类似于传统共聚焦显微镜中打开针孔的效果。然而,在某些傅里叶域应用中,或涉及光谱测量时,相干光检测将导致明显的光谱调制伪影,这是由采集光纤中的多模传播引起的差分模式延迟造成的。在使用模式依赖偏振控制消除这些伪影后,我们展示了有效的频谱编码成像,具有提高的信号效率和更低的散斑噪声,并且仅在横向和轴向分辨率上有微小的可忽略不计的降低。
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
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.
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