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双色荧光辐射差分超分辨显微系统研究

张智敏 匡翠方 王子昂 朱大钊 陈友华 李传康 刘文杰 刘旭

张智敏, 匡翠方, 王子昂, 朱大钊, 陈友华, 李传康, 刘文杰, 刘旭. 双色荧光辐射差分超分辨显微系统研究[J]. 中国光学, 2018, 11(3): 329-336. doi: 10.3788/CO.20181103.0329
引用本文: 张智敏, 匡翠方, 王子昂, 朱大钊, 陈友华, 李传康, 刘文杰, 刘旭. 双色荧光辐射差分超分辨显微系统研究[J]. 中国光学, 2018, 11(3): 329-336. doi: 10.3788/CO.20181103.0329
ZHANG Zhi-min, KUANG Cui-fang, WANG Zi-ang, ZHU Da-zhao, CHEN You-hua, LI Chuan-kang, LIU Wen-jie, LIU Xu. Dual-color fluorescence emission difference super-resolution microscopy[J]. Chinese Optics, 2018, 11(3): 329-336. doi: 10.3788/CO.20181103.0329
Citation: ZHANG Zhi-min, KUANG Cui-fang, WANG Zi-ang, ZHU Da-zhao, CHEN You-hua, LI Chuan-kang, LIU Wen-jie, LIU Xu. Dual-color fluorescence emission difference super-resolution microscopy[J]. Chinese Optics, 2018, 11(3): 329-336. doi: 10.3788/CO.20181103.0329

双色荧光辐射差分超分辨显微系统研究

doi: 10.3788/CO.20181103.0329
基金项目: 

国家重大科学仪器设备开发资助项目 No.2016YFF0101401

详细信息
    作者简介:

    张智敏(1992—), 男,广东河源人,博士研究生,2015年于华南理工大学获得学士学位,主要从事光学超分辨显微成像方面的研究。E-mail:z_zhimin@zju.edu.cn

    匡翠方(1977—),男,江西泰和人,博士,教授,博士生导师,主要从事光学超分辨显微成像方面的研究。E-mail:cfkuang@zju.edu.cn

  • 中图分类号: TH742

Dual-color fluorescence emission difference super-resolution microscopy

Funds: 

National Key Scientific Instrument and Equipment Development Projects of China No.2016YFF0101401

More Information
  • 摘要: 为了拓展荧光辐射差分(Fluorescence Emission Difference,FED)显微术的应用,使得该方法可以同时对生物样品的不同组织结构进行超分辨成像,本文对双色FED显微系统展开了研究。FED的基本原理是将实心光斑扫描得到的共焦显微图像减去空心光斑扫描得到的负共焦图像,以此获得超分辨显微图像。在对单色FED显微系统进行研究后,本文提出了一种可行的双色FED显微成像系统方案。实验结果表明,在488 nm和640 nm激发光下,该系统在荧光颗粒上分别实现了135 nm和160 nm的空间分辨率,另外也能对生物样品的不同组织进行多色同时超分辨显微成像,满足了实际应用的要求。
  • 图  1  FED原理图解:(a),(b)分别为激发的实心光斑和空心光斑的PSF三维图;(c),(d)为探测的实心光斑和空心光斑的PSF三维图;(e)为FED的PSF三维图;(f),(g),(h)分别为(c),(d),(e)的平面图;(i),(j),(k)分别为(f),(g),(h)在虚线处的截面图

    Figure  1.  Illustration of FED theory. (a)PSF of confocal excited pattern; (b)PSF of negative confocal excited pattern; (c)PSF of confocal image; (d)PSF of negative confocal image; (e) PSF of FED image; (f), (g), (h) the plane graph of (c), (d) and (e); (i), (j), (k) the sectional drawing along the dash line of (f), (g) and (h)

    图  2  双色FED系统图与时序图(a)双色FED系统图,其中PBS为偏振分光镜,PM为涡旋位相板,RM为反射镜,DC为二色镜,4F SM为4F扫描模块,AL为消色差透镜,SMF为保偏光纤;(b)系统CAD设计图;(c)扫描时序图

    Figure  2.  Scheme and sequence chart of dual color FED system. (a)Dual color FED system, PBS:polarizing beam splitter, PM:vortex phase mask, RM:reflect mirror, DC:dichroic beam splitter, 4F SM:4F Scanning Module, AL:achromatic lens, SMF:single-mode polarization maintain fiber; (b)CAD of the system; (c)scan sequence chart

    图  3  单向扫描控制波形

    Figure  3.  Unidirectional scan control waveform

    图  4  软件流程图

    Figure  4.  Software flow chart

    图  5  488 nm激发的荧光样品共焦和FED图像。(a)共焦图像;(b)FED图像;(c)共焦图像虚框内局部放大图像;(d)FED图像虚框内局部放大图像;(e)箭头部分归一化后的轮廓图

    Figure  5.  Confocal image and FED image of fluorescent beads excited at 488 nm. (a)Confocal image; (b)FED image. (c, d)Magnified view of dashed region at (a) and (b). (e)Normalized outline of arrow section of (c) and (d)

    图  6  640 nm激发的荧光样品共焦和FED图像。(a)共焦图像;(b)FED图像;(c)共焦图像虚框内局部放大图像;(d)FED图像虚框内局部放大图像;(e)箭头部分归一化后轮廓图

    Figure  6.  Confocal image and FED image of fluorescent beads excited at 640 nm. (a)Confocal image; (b)FED image; (c, d)Magnified view of dashed region at (a) and (b); (e)Normalized outline of arrow section of (c) and (d)

    图  7  生物样品多色成像图。(a)共焦图像;(b)FED图像;(c)共焦图像虚框内局部放大图;(d)FED图像虚框内局部放大图;(e)箭头指向部分轮廓图

    Figure  7.  Confocal image and FED image of biological structures excited at 488nm and 640nm simultaneously. (a)Confocal image; (b)FED image; (c, d)Magnified view of dashed region at (a) and (b); (e)Normalized outline of arrow section of (c) and (d)

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出版历程
  • 收稿日期:  2018-01-11
  • 修回日期:  2018-03-05
  • 刊出日期:  2018-06-01

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