Formation and focusing characteristics of Pearcey beam

Hu Hanqing; Wu Fengtie; Hu Run; Yang Yanfei; Zhu Qingzhi

doi:10.3788/IRLA201847.0618003

Pearcey beam was obtained by designing a simple optical element-parabolic slit aperture. Based on the generalized Huygens-Fresnel diffraction integral in the spatial domain, the Pearcey beam expression of the system was derived. Numerical simulations and experiments verify the generation of Pearcey beams. At the same time, the self-focusing characteristics of the Pearcey beam were studied, and the effect of the focal distance of parabolic silt aperture on the focal spot was discussed. The experimental results show that the size of the self-focucal spot was consistent with the numerical simulation. The results provide theoretical and experimental basis for the Pearcey beam for optical trapping.

Formation and focusing characteristics of Pearcey beam

1. College of Information Science and Engineering,Huaqiao University,Xiamen 361021,China;

2. Fujian Key Laboratory of Optical Beam Transmission and Transformation,Xiamen 361021,China

Received Date: 2018-01-10

Rev Recd Date: 2018-02-20

Publish Date: 2018-06-25

Key words:

Abstract: Pearcey beam was obtained by designing a simple optical element-parabolic slit aperture. Based on the generalized Huygens-Fresnel diffraction integral in the spatial domain, the Pearcey beam expression of the system was derived. Numerical simulations and experiments verify the generation of Pearcey beams. At the same time, the self-focusing characteristics of the Pearcey beam were studied, and the effect of the focal distance of parabolic silt aperture on the focal spot was discussed. The experimental results show that the size of the self-focucal spot was consistent with the numerical simulation. The results provide theoretical and experimental basis for the Pearcey beam for optical trapping.

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Reference (16)

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Formation and focusing characteristics of Pearcey beam

doi: 10.3788/IRLA201847.0618003

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