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Experimental generation of a partially coherent Laguerre–Gaussian beam

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Abstract

We report experimental generation of a partially coherent Laguerre–Gaussian beam with mode orders 0 and l (i.e., LG0l beam) using a rotating ground-glass plate and a spatial light modulator. Focusing properties of the generated beam are studied both theoretically and experimentally. It is found that the focused intensity of the LG0l beam is shaped through varying the initial spatial coherence, and our experimental results agree well with the theoretical predictions. Our results will be useful in particle trapping and free-space optical communications.

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Acknowledgments

This work is supported by the National Natural Science Foundation of China under Grant Nos. 11274005, 10904102, 61008009 and 11104195, the Foundation for the Author of National Excellent Doctoral Dissertation of PR China under Grant No. 200928, the Natural Science Foundation of Jiangsu Province under Grant No. BK2009114, the Huo Ying Dong Education Foundation of China under Grant No. 121009, the Key Project of Chinese Ministry of Education under Grant No. 210081, the Universities Natural Science Research Project of Jiangsu Province Grant Nos. 10KJB140011 and 11KJB140007, the Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions, and the National College Students Innovation Experiment Program under Grant No. 111028510.

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Authors and Affiliations

  1. School of Physical Science and Technology, Soochow University, Suzhou, 215006, China

    Chengliang Zhao, Yuan Dong, Yuming Wang, Fei Wang, Yongtao Zhang & Yangjian Cai

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  1. Chengliang Zhao
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  2. Yuan Dong
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  3. Yuming Wang
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  4. Fei Wang
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  5. Yongtao Zhang
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  6. Yangjian Cai
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Correspondence to Yangjian Cai.

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Zhao, C., Dong, Y., Wang, Y. et al. Experimental generation of a partially coherent Laguerre–Gaussian beam. Appl. Phys. B 109, 345–349 (2012). https://doi.org/10.1007/s00340-012-5209-0

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  • DOI: https://doi.org/10.1007/s00340-012-5209-0

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