Chinese Optics, Volume. 15, Issue 6, 1167(2022)

In-vivo across-scales two-photon microscopic imaging technique

Shuai CHEN1,2, Lin REN1,2, Zhen-qiao ZHOU2, Min LI2, and Hong-bo JIA1,2、*
Author Affiliations
  • 1School of Physical Science and Engineering Technology and Center for Brain and Intelligence Research, Guangxi University, Nanning 530004, China
  • 2Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China
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    Figures & Tables(8)
    Excitation principles of (a) single photon and (b) two-photon fluorescence
    Schematic diagram of two-photon microscope structure
    Two-photon microscope with large-scale imaging field of view. (a) Multi-area real-time two-photon imaging technology[25]; (b) dual scanning system two-photon microscope[26]; (c) two-photon microscope with dual scanning area simultaneous imaging[28]; (d) two-photon microscope with multi-region follow-on scanning[31]
    Fast scanning two-photon imaging technology. (a) Light beads two-photon microscope[37]; (b) multi-focus fast scanning two-photon microscope[38]; (c) fast line scanning two-photon microscope[39]
    Ultra depth detection microscopic imaging. (a) Gradient refractive index lens two-photon microscope[44]; (b) three-photon neuron imaging in mice[49]; (c) three-photon cerebral vascular imaging in mice[51]
    Super-resolution two-photon microscope. (a) STEM imaging principles and experimental data[58]; (b) SIM structured light generation method and comparison of structured light and uniform light irradiation detection accuracy[60]
    Experimental results of super-resolution two-photon microscope[65-66]
    • Table 1. Progress in performance improvement of two-photon microscopy in multiple scale directions

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      Table 1. Progress in performance improvement of two-photon microscopy in multiple scale directions

      提升的 尺度方向 提升方法结果相关文献
      成像视野1. 使用两套或多套独立扫描探测系统; 2. 自制大视野介观物镜,双焦点扫描,脉冲延时与时分复用; 3. 自制大口径介观物镜,共振镜串联大孔径振镜,随机扫描; 4. 使用多层阵列复合物镜结构,二次聚焦放大,多光轴耦合。 将传统显微镜的成像视野直径由不到1 mm提升至12 mm。[2533]
      成像通量1. 光珠双光子荧光显微镜,轴向多焦点扫描; 2. 微透镜阵列将光束分束,平面多焦点扫描; 3. 线扫描,通过压缩传感算法反解出二维荧光图像。 成像通量由百万量级提高至亿量级。图像帧率达到kHz量级。[3539]
      成像深度1. 使用更低能量(波长1300 nm)的光子,结合自适应光学,三光子激发; 2. 配合使用梯度折射率透镜,任意深度探测。 成像深度由传统双光子0.7 mm提升至2.1 mm(三光子,无外源装置侵入)或任意深度(配合植入器件)。[4446]、[4951]
      成像分辨率1. 受激辐射耗尽双光子荧光显微镜; 2. 结构光双光子荧光显微镜。 将双光子的成像分辨率由~500 nm提升至80 nm。[54]、[5759]、[6062]
      微型化1. 光纤传导激发光,MEMS、微型物镜等器件。重量由数十 kg减少到 ~3 g;被观测动物在实验过程中可以自由移动。[6568]
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    Shuai CHEN, Lin REN, Zhen-qiao ZHOU, Min LI, Hong-bo JIA. In-vivo across-scales two-photon microscopic imaging technique[J]. Chinese Optics, 2022, 15(6): 1167

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    Paper Information

    Category: Review

    Received: Apr. 29, 2022

    Accepted: --

    Published Online: Feb. 9, 2023

    The Author Email:

    DOI:10.37188/CO.2022-0086

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