搜索

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

超衍射极限相干反斯托克斯拉曼散射显微成像技术及其探测极限分析

刘伟 陈丹妮 刘双龙 牛憨笨

引用本文:
Citation:

超衍射极限相干反斯托克斯拉曼散射显微成像技术及其探测极限分析

刘伟, 陈丹妮, 刘双龙, 牛憨笨

Diffraction barrier breakthrough in coherent anti-Stokes Raman scattering microscopy and detection limitanalysis

Liu Wei, Chen Dan-Ni, Liu Shuang-Long, Niu Han-Ben
PDF
导出引用
  • 理论上提出一种突破衍射极限限制的相干反斯托克斯拉曼散射显微成像方法, 并对其探测极限进行分析.通过引入环形附加探测光与艾里斑周边的声子作用, 实现点扩展函数的改造, 提高相干反斯托克斯拉曼散射显微成像系统的横向空间分辨率. 随着分辨率的提高, 信号强度也随之降低, 尤其当应用于生物学、医学研究时, 样品分子数密度通常很低, 这将导致信号探测更加困难. 因此分析系统的探测极限, 确定超分辨体积元内的最小可探测分子数是展开超衍射极限相干反斯 托克斯拉曼散射显微成像实验研究的重要前提. 当泵浦光、斯托克斯光、探测光光强均达到极大值, 分辨率约40 nm三维空间内, 超衍射极限相干反斯托克斯拉曼散射显微成像系统的散粒噪声信噪比由曝 光时间与样品分子数密度决定. 曝光时间若取20 ms, 探测极限约为103, 样品分子数目只有大于探测极限, 才能保证信号可以从噪声背景中提取出来.
    We provide an approach to breaking the diffraction limit in coherent anti-Stokes Raman scattering (CARS) microscopy and report a theoretical analysis of detection limit (DL) forit. The additional probe beam, whose profile is doughnut shaped and wavelength is different from the size of Gaussian probe beam, interacts with the coherent phonons at the rim of the diffraction-limited spot to increase theresolution by re-engineering the point spreadfunction of the system. The signal strength reduces with the size of focal volume decreasing, besides, when CARS is used in biology, the molecules of interest are usually in low concentration, which makes the signal detection more difficult. Accordingly, a remaining crucial problem is whether the reduced signal generated in the suppressed focal volume can be detected from the noise background and the analysis of DL, so it is an important precise in implementation of CARS nanoscopy. We describe T-CARS process with full quantum theory and estimate the extreme power density levels of the pump and Stokes beams determined by saturation behavior of coherent phonons. When the pump and Stokes intensities reach such extreme values and total intensity of the excitation beams arrives at a maximum tolerable by most biological samples in acertain suppressed focal volume, the DL of T-CARS nanoscopy correspondingly varies with the exposure time. For an attainable spatial resolution of ~40 nm in three dimension and areasonable exposure time of 20 ms, the DL in the suppressed focal volume is approximately ~103. The signal can be well detected from the noise fluctuation only if the number of molecules of interest exceeds this limit.
    • 基金项目: 国家重点基础研究发展计划(批准号: 2012CB825802);国家自然科学基金(批准号: 61235012, 61178080, 11004136, 60878053);国家重大科学仪器设备开发专项(批准号: 2012YQ15009203)和深圳市科技计划(批准号: JCYJ20120613173049560, GJHS20120621155433884)资助的课题.
    • Funds: Project supported by the National Basic Research Program of China (Grant No. 2012CB825802), the National Natural Science Foundation of China (Grant Nos. 61235012, 61178080, 11004136, 60878053), the Special Funds of the Major Scientific Instruments Equipment Development of China (Grant No. 2012YQ15009203), and the Science and Technology Planning Project of Shenzhen, China (Grant Nos. JCYJ20120613173049560, GJHS20120621155433884).
    [1]

    Evans C L, Xie X S 2008 Annu. Rev. Anal. Chem. 1 883

    [2]

    Hajek K M, Littleton B, Turk D, Mcintyre T J, Rubinsztein-Dunlop H 2010 Opt. Express 18 19263

    [3]

    Betzig E, Patterson G H, Sougrat R, Lindwasser O W, Olenych S, Bonifacino J S, Davidson M W, Lippincott-Schwartz J, Hess H F 2006 Science 313 1642

    [4]

    Hell S W, Wichmann J 1994 Opt. Lett. 19 780

    [5]

    Chen D N, Liu L, Yu B, Niu H B 2010 Acta Phys. Sin. 59 6954 (in Chinese) [陈丹妮, 刘磊, 于斌, 牛憨笨 2010 物理学报 59 6954]

    [6]

    Beeker W P, Groß P, Lee C J, Cleff C, Offerhaus H L, Fallnich C, Herek J L, Boller K 2009 Opt. Express 17 22632

    [7]

    Nikolaenko A, Krishnamachari V V, Potma E O 2009 Phys. Rev. A 79 13823

    [8]

    Hajek K M, Littleton B, Turk D, McIntyre T J, Rubinsztein-Dunlop H 2010 Opt. Express 18 19263

    [9]

    Nan X, Cheng J X, Xie X S 2003 J. Lipid Res. 44 2202

    [10]

    Liu W, Niu H B 2011 Phys. Rev. A 83 23830

    [11]

    Vallèe F, Bogani F 1991 Phys. Rev. B 43 12049

    [12]

    Loudon R 1983 The Quantum Ttheory of Light (Oxford: Clarendon Press)

    [13]

    El-Diasty F 2011 Vib. Spectrosc. 55 1

    [14]

    Portnov A, Rosenwaks S, Bar I 2008 Appl. Phys. Lett. 93 41115

    [15]

    Begley R F, Harvey A B, Byer R L 1974 Appl. Phys. Lett. 25 387

    [16]

    Cui M, Bachler B R, Ogilvie J P 2009 Opt. Lett. 34 773

    [17]

    König K 2001 J. Microsc. 200 83

  • [1]

    Evans C L, Xie X S 2008 Annu. Rev. Anal. Chem. 1 883

    [2]

    Hajek K M, Littleton B, Turk D, Mcintyre T J, Rubinsztein-Dunlop H 2010 Opt. Express 18 19263

    [3]

    Betzig E, Patterson G H, Sougrat R, Lindwasser O W, Olenych S, Bonifacino J S, Davidson M W, Lippincott-Schwartz J, Hess H F 2006 Science 313 1642

    [4]

    Hell S W, Wichmann J 1994 Opt. Lett. 19 780

    [5]

    Chen D N, Liu L, Yu B, Niu H B 2010 Acta Phys. Sin. 59 6954 (in Chinese) [陈丹妮, 刘磊, 于斌, 牛憨笨 2010 物理学报 59 6954]

    [6]

    Beeker W P, Groß P, Lee C J, Cleff C, Offerhaus H L, Fallnich C, Herek J L, Boller K 2009 Opt. Express 17 22632

    [7]

    Nikolaenko A, Krishnamachari V V, Potma E O 2009 Phys. Rev. A 79 13823

    [8]

    Hajek K M, Littleton B, Turk D, McIntyre T J, Rubinsztein-Dunlop H 2010 Opt. Express 18 19263

    [9]

    Nan X, Cheng J X, Xie X S 2003 J. Lipid Res. 44 2202

    [10]

    Liu W, Niu H B 2011 Phys. Rev. A 83 23830

    [11]

    Vallèe F, Bogani F 1991 Phys. Rev. B 43 12049

    [12]

    Loudon R 1983 The Quantum Ttheory of Light (Oxford: Clarendon Press)

    [13]

    El-Diasty F 2011 Vib. Spectrosc. 55 1

    [14]

    Portnov A, Rosenwaks S, Bar I 2008 Appl. Phys. Lett. 93 41115

    [15]

    Begley R F, Harvey A B, Byer R L 1974 Appl. Phys. Lett. 25 387

    [16]

    Cui M, Bachler B R, Ogilvie J P 2009 Opt. Lett. 34 773

    [17]

    König K 2001 J. Microsc. 200 83

计量
  • 文章访问数:  5488
  • PDF下载量:  1401
  • 被引次数: 0
出版历程
  • 收稿日期:  2013-03-27
  • 修回日期:  2013-04-17
  • 刊出日期:  2013-08-05

/

返回文章
返回