Scanless multitarget-matching multiphoton excitation fluorescence microscopy

Scanless multitarget-matching multiphoton excitation fluorescence microscopy
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无扫描多目标匹配多光子激发荧光显微镜

DOI:
10.1142/s1793545817500134
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发表时间:
2017-03
影响因子:
2.5
通讯作者:
Yonghong Shao
Yonghong Shao
中科院分区:
医学3区
文献类型:
--
作者:
Junpeng Qiu;Lei Wang;Bruce Zhi Gao;Junle Qu;Yonghong Shao

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采用反射式闪耀光栅和反射式纯相位衍射空间光调制器(SLM)相结合的方法,实现了无扫描多目标匹配多光子激发荧光显微术(SMTM-MPM)。SLM将进入的锁模近红外Ti:蓝宝石激光束成形为具有匹配视场中感兴趣的样品的可寻址形状和尺寸的激发图案。通过物镜透镜和闪耀光栅的组合实现了时间聚焦和空间聚焦。通过二维sCMOS相机记录来自照射区域的荧光信号。与传统的时间聚焦多光子显微镜相比,我们的显微镜实现了有效地利用激光功率和降低光损伤与更高的轴向分辨率。
Using the combination of a reflective blazed grating and a reflective phase-only diffractive spatial light modulator (SLM), scanless multitarget-matching multiphoton excitation fluorescence microscopy (SMTM-MPM) was achieved. The SLM shaped an incoming mode-locked, near-infrared Ti:sapphire laser beam into an excitation pattern with addressable shapes and sizes that matched the samples of interest in the field of view. Temporal and spatial focusing were simultaneously realized by combining an objective lens and a blazed grating. The fluorescence signal from illuminated areas was recorded by a two-dimensional sCMOS camera. Compared with a conventional temporal focusing multiphoton microscope, our microscope achieved effective use of the laser power and decreased photodamage with higher axial resolution.
DOI: 10.1364/ol.37.002532
发表时间: 2012-07-01
期刊: Optics letters
影响因子: 3.6
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