高面积和体积吞吐量平行双光子荧光显微镜使用硅光电倍增管阵列。

IF 7.2 1区 物理与天体物理 Q1 OPTICS
Photonics Research Pub Date : 2025-09-01 Epub Date: 2025-08-29 DOI:10.1364/prj.546289
Vincent D Ching-Roa, Chi Z Huang, Michael G Giacomelli
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引用次数: 0

摘要

双光子荧光显微镜(TPFM)具有抗散射、高分辨率和易于复用荧光探针等优点,被广泛应用于生物组织成像。然而,TPFM体积成像率通常较低,限制了对整个清除组织和大手术标本的成像能力。虽然TPFM技术的创新,如并行扫描,大大提高了成像速度,但这些改进通常集中在高帧率、单视场成像上,而不是扩展区域/体积成像速率。在这项工作中,我们通过使用定制硅光电倍增管(SiPM)平铺阵列探测器将平行扫描与倾斜平面条带扫描相结合,弥合了高成像速度与高面积和体积成像吞吐量之间的差距。我们演示了200 MP/s的四个光谱通道(800 MSpectra/s)和使用四个平行光束的有效区域成像速度高达52 mm2/s。定制的探测器和透镜阵列能够以最小的串扰实现非反扫描成像,其光收集效率可与传统的单点扫描TPFM相媲美。最后,自定义检测器的低成本(每个通道约250美元)和检测光学器件的可扩展性使得光谱复用变得容易。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
High area and volumetric throughput parallel two-photon fluorescence microscopy using silicon photomultiplier arrays.

Two-photon fluorescence microscopy (TPFM) is widely used for imaging of biological tissue due to its robustness to scattering, high resolution, and ease of multiplexing fluorescent probes. However, TPFM volumetric imaging rates are typically low, limiting the ability to image whole cleared tissues and large surgical specimens. While innovations in TPFM technology, such as parallel-scanning, have drastically increased imaging speed, these improvements have typically focused on high frame rate, single field-of-view imaging rather than extending the area/volume imaging rate. In this work, we bridge the gap between high imaging speed and high area and volumetric imaging throughput by combining parallel scanning with tilted-plane strip-scanning using custom silicon photomultiplier (SiPM) tiled-array detectors. We demonstrate 200 MP/s with four spectral channels (800 MSpectra/s) and an effective area imaging speed of up to 52 mm2/s using four parallel beams. Custom detectors and lens array enable non-descanned imaging with minimal crosstalk combined with light collection efficiency comparable to a conventional single-point scanning TPFM. Finally, the low-cost of the custom detectors (~$250 per channel) and the scalability of the detection optics allow for ease of spectral multiplexing.

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来源期刊
CiteScore
13.60
自引率
5.30%
发文量
1325
期刊介绍: Photonics Research is a joint publishing effort of the OSA and Chinese Laser Press.It publishes fundamental and applied research progress in optics and photonics. Topics include, but are not limited to, lasers, LEDs and other light sources; fiber optics and optical communications; imaging, detectors and sensors; novel materials and engineered structures; optical data storage and displays; plasmonics; quantum optics; diffractive optics and guided optics; medical optics and biophotonics; ultraviolet and x-rays; terahertz technology.
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