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基于偏振光相位调制的超衍射极限空间结构光研究

袁强 赵文轩 马睿 张琛 赵伟 王爽 冯晓强 王凯歌 白晋涛

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基于偏振光相位调制的超衍射极限空间结构光研究

袁强, 赵文轩, 马睿, 张琛, 赵伟, 王爽, 冯晓强, 王凯歌, 白晋涛

Sub-diffraction-limit spatially structured light pattern based on polarized beam phase modulation

Yuan Qiang, Zhao Wen-Xuan, Ma Rui, Zhang Chen, Zhao Wei, Wang Shuang, Feng Xiao-Qiang, Wang Kai-Ge, Bai Jin-Tao
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  • 具有超衍射极限尺寸的空间结构光在远场超分辨成像、光镊、微纳米加工等领域都有着重要的应用.本文基于偏振光的相位调制原理,结合光学实验与光场数值模拟开展了在空间生成具有超衍射极限尺寸的空间结构光的研究.首先设计了一种兼备圆形up与涡旋形2up相位板特点的新型相位板,并且实验观察到了高数值孔径系统中新型相位板调制圆偏振高斯光的焦点处的空间结构光形貌.随后通过结合矢量衍射积分理论的数值模拟,得出了一种具有超衍射极限尺寸、且同时呈现中心对称与轴对称的空间结构光.最后,本文详细讨论分析了新型相位板调制圆偏振光、线偏振光、径向偏振光以及角向偏振光所获得的空间结构光分布特点.结果显示,圆、线、径向与角向偏振条件下得到的空间结构光横向最小暗斑的半高全宽分别为0.31,0.32,0.24和0.36;在光轴上,线、径向与角向偏振光情况下的中心暗斑的半高全宽分别为0.8,0.78,0.76,而圆偏振光在轴向方向没有电矢量分布.
    The sub-diffraction-limit spatially structured light patterns have attracted more and more attention for their important applications in many frontier scientific fields. The present paper aims at developing sub-diffraction-limit spatially structured beam patterns which might have great potential to improve the light performance in fields such as super resolution imagery, optical tweezer, micro/nano lithography, etc. Here, a variety of spatially structured beam patterns are obtained by the phase modulation of polarized beams and studied in detail experimentally and numerically. Firstly, a new kind of phase plate, which combines the merits of circular and vortex 2 phase plates, is proposed based on the wave front design; it is composed of two spiral-shaped phase plates with their phases changing from 0 to 2 and - to , respectively. Later, the phase plate is applied to the circularly polarized Gaussian beam modulation in a high NA system. By combining a self-made circular with a commercial vortex 2 phase plate, the designed new phase plate is implemented in the experiment. The morphology of the spatially structured light pattern, which is generated on the focal plane, is observed by a CCD camera in the experiment. The beam pattern presents a donut shape on the focal plane, while the dimension of the donut-shaped pattern becomes smaller as the imaging plane axially deviates from the focal plane. It is found that the beam patterns captured in experiment highly consist with the numerical simulation results carried out by the vectorial diffraction integral theory. It can be deduced that the spatially structured beam is capillary-shaped. Meanwhile, at the two ends of the capillary-shaped beam, the inner diameter is smaller than the diffraction limitation. Furthermore, the structured beam pattern presents a spatial voxel distribution with center and axis symmetry. Finally, the characteristics of the spatially structured beam patterns, which are generated by modulating circular, linear, radial and azimuthal polarized beams with the new designed phase plate, are analyzed and discussed in detail. It is found that for circular, linear, radial and azimuthal polarization, the full widths at half maximum (FWHMs) of the minimum dark spots in the horizontal direction are 0.31, 0.32, 0.24 and 0.36, respectively. On the optical axis, the FWHMs of the dark spots created by linearly, radially and azimuthally polarized light, are 0.8, 0.78 and 0.76 , respectively, and no axial intensity is found with circularly polarized beam incidence.
      通信作者: 张琛, wangkg@nwu.edu.cn;nwuzchen@nwu.edu.cn ; 王凯歌, wangkg@nwu.edu.cn;nwuzchen@nwu.edu.cn
    • 基金项目: 国家自然科学基金青年科学基金(批准号:11504294)、国家自然科学基金面上项目(批准号:61378083)、 国家自然科学基金重大研究计划培育项目(批准号:91123030)、 科技部中美合作项目(批准号:2011DFA12220)、 陕西省自然科学基础研究计划青年人才项目(批准号:2016JQ1030)和陕西省自然科学基金(批准号:14JS106,2013SZS03-Z01)资助的课题.
      Corresponding author: Zhang Chen, wangkg@nwu.edu.cn;nwuzchen@nwu.edu.cn ; Wang Kai-Ge, wangkg@nwu.edu.cn;nwuzchen@nwu.edu.cn
    • Funds: Project supported by Young Scientist Fund of the National Natural Science Foundation of China (Grant No. 11504294), the National Natural Science Foundation of China (Grant No. 61378083), the Major Research Plan of the National Natural Science Foundation of China (Grant No. 91123030), the International Cooperation Foundation of the National Science and Technology Ministry of China (Grant No. 2011DFA12220), the Youth Talent Plan of the Natural Science Foundation of Shaanxi Province of China (Grant No. 2016JQ1030), and the Natural Science Foundation of Shaanxi Province of China (Grant Nos. 14JS106, 2013SZS03-Z01).
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  • [1]

    Chattopadhyay S, Huangy Y F, Jen Y, Ganguly A, Chen K H, Chen L C 2010 Mat. Sci. Eng. R 69 1

    [2]

    Yang H F, He H D, Zhao E L, Han J, Hao J B, Qian J G, Tang W, Zhu H 2014 Laser Phys. 24 065901

    [3]

    Zhou Z H, Zhu L Q 2016 Chin. Phys. B 25 118

    [4]

    An S, Peng T, Zhou X, Han G X, Huang Z X, Yu X H, Cai Y N, Yao B L, Zhang P 2017 Acta Phys. Sin. 66 010702 (in Chinese) [安莎, 彭彤, 周兴, 韩国霞, 黄张翔, 于湘华, 蔡亚楠, 姚保利, 张鹏 2017 物理学报 66 010702]

    [5]

    Westphal V, Kastrup L, Hell S W 2003 Appl. Phys. B 77 377

    [6]

    Westphal V, Hell S W 2005 Phys. Rev. Lett. 94 143903

    [7]

    Rittwegere E, Han K Y, Irvine S E, Eggeling C, Hell S W 2009 Nat. Photon. 3 144

    [8]

    Li S, Kuang C F, Ding Z H, Hao X, Gu Z T, Ge J H, Liu X 2013 Acta Laser Biology Sinica 22 103

    [9]

    Wildanger D, Patton B R, Schil H, Marseglia L, Hadden J P 2012 Adv. Mater. 24 309

    [10]

    Sakai K, Noda S 2007 Electron. Lett. 43 107

    [11]

    Yao B L, Yan S H, Ye T, Zhao W 2010 Chin. Phys. Lett. 27 224

    [12]

    Sun Y L, Zhao Y Q, Zhan Q W, Li Y P 2006 Acta Phys. Sin. 55 1253 (in Chinese) [孙艳丽, 赵逸琼, 詹其文, 李永平 2006 物理学报 55 1253]

    [13]

    Cao Y, Gan Z, Jia B, Evans R A, Gu M 2011 Opt. Express 19 19486

    [14]

    Dong X Z, Chen W Q, Zhao Z S, Duan X M 2008 Chin. Sci. Bull. 53 2 (in Chinese) [董贤子, 陈卫强, 赵震声, 段宣明 2008 科学通报 53 2]

    [15]

    Dai N G, Xuan M D, Ding P, Jia H Q, Zhou J M, Chen H 2013 Acta Phys. Sin. 62 156104 (in Chinese) [戴隆贵, 禤铭冬, 丁芃, 贾海强, 周均铭, 陈宏 2013 物理学报 62 156104]

    [16]

    Zhang C, Wang K G, Bai J T, Wang S, Zhao W, Yang F, Gu C Z, Wang G R 2013 Nanoscale Res. Lett. 8 1

    [17]

    Beijersbergen M W, Coerwinkel R P C, Kristensen M, Woerdman J P 1994 Opt. Commun. 112 321

    [18]

    Hotta J, Uji-I H, Hofkens J 2006 Opt. Express 14 6273

    [19]

    Bingen P, Reuss M, Engelhardt J, Hell S W 2011 Opt. Express 19 23716

    [20]

    Ren Y X, Li M, Huang K, Wu J G, Gao H F, Wang Z Q, Li Y M 2010 Appl. Opt. 49 1838

    [21]

    Qian J, Lei M, Dan D, Yao B L, Zhou X, Yang Y L, Yan S H, Min J W, Yu X H 2015 Sci. Rep. 5 14513

    [22]

    Hermerschmidt A, Krger S, Haist T, Zwick S, Warber M, Osten W 2008 Proceedings of SPIE San Jose, CA, January 19, 2008 p690508

    [23]

    Leonardo R D, Ianni F, Ruocco G 2007 Opt. Express 15 1913

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出版历程
  • 收稿日期:  2017-01-01
  • 修回日期:  2017-04-10
  • 刊出日期:  2017-06-05

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