Generation of perfect polarization vortices using combined gratings in a single spatial light modulator

Tonglu Wang; Shiyao Fu; Feng He; Chunqing Gao

doi:10.1364/AO.56.007567

Generation of perfect polarization vortices using combined gratings in a single spatial light modulator

Tonglu Wang, Shiyao Fu, Feng He, Chunqing Gao^*

^*Corresponding author for this work

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

Perfect polarization vortices (PPVs) are a type of vector beam with a diameter independent of the polarization order. In this paper, an experimental method is proposed to generate PPVs with an anisotropic polarization distribution. First, a specially designed hologram is generated on a liquid-crystal spatial light modulator (SLM) to obtain Bessel–Gaussian (BG) beams. Second, the BG beams are transformed into PPVs in the Bessel region by an interferometer, which includes a polarized beam splitter, two reflectors, and several lenses. In our experiment, PPVs with adjustable polarization orders and diameters are obtained by generating various combined holograms on the SLM.

Original language	English
Pages (from-to)	7567-7571
Number of pages	5
Journal	Applied Optics
Volume	56
Issue number	27
DOIs	https://doi.org/10.1364/AO.56.007567
Publication status	Published - 20 Sept 2017

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abstract = "Perfect polarization vortices (PPVs) are a type of vector beam with a diameter independent of the polarization order. In this paper, an experimental method is proposed to generate PPVs with an anisotropic polarization distribution. First, a specially designed hologram is generated on a liquid-crystal spatial light modulator (SLM) to obtain Bessel–Gaussian (BG) beams. Second, the BG beams are transformed into PPVs in the Bessel region by an interferometer, which includes a polarized beam splitter, two reflectors, and several lenses. In our experiment, PPVs with adjustable polarization orders and diameters are obtained by generating various combined holograms on the SLM.",

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AU - Gao, Chunqing

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AB - Perfect polarization vortices (PPVs) are a type of vector beam with a diameter independent of the polarization order. In this paper, an experimental method is proposed to generate PPVs with an anisotropic polarization distribution. First, a specially designed hologram is generated on a liquid-crystal spatial light modulator (SLM) to obtain Bessel–Gaussian (BG) beams. Second, the BG beams are transformed into PPVs in the Bessel region by an interferometer, which includes a polarized beam splitter, two reflectors, and several lenses. In our experiment, PPVs with adjustable polarization orders and diameters are obtained by generating various combined holograms on the SLM.

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Generation of perfect polarization vortices using combined gratings in a single spatial light modulator

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