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Experimental study of the generation of Laguerre-Gaussian beam using a computer-generated amplitude grating

Li Feng Gao Chun-Qing Liu Yi-Dong Gao Ming-Wei

Experimental study of the generation of Laguerre-Gaussian beam using a computer-generated amplitude grating

Li Feng, Gao Chun-Qing, Liu Yi-Dong, Gao Ming-Wei
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  • Received Date:  22 May 2007
  • Accepted Date:  06 June 2007
  • Published Online:  20 February 2008

Experimental study of the generation of Laguerre-Gaussian beam using a computer-generated amplitude grating

  • 1. 北京理工大学信息科学技术学院光电工程系,北京 100081

Abstract: Laguerre-Gaussian (LG) beams attratts much attention in the fields of rotating micro-particle manipulation and information processing due to their special phase structures and related orbital angular momentum. In this paper the generation of LG beam by an amplitude grating was theoretically studied and the LG beams with azimuthal number of ±1 were obtained by the amplitude grating produced by the computer-generated hologram (CGH). Influences of main factors on the beam transformation were discussed.

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