Acta Photonica Sinica, Volume. 43, Issue 9, 923003(2014)

A Polymer Dispersed Liquid Crystal Fresnel Zone Plate

HE Ru-shuang1、*, ZHANG Bin1, WANG Zhen-yu1, TAO Wei-dong1, PAN Xue-fen1, and DONG Jian-feng2
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  • 1[in Chinese]
  • 2[in Chinese]
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    A wave band ring pattern was fabricated by femtosecond laser on a glass substrate which was plated with aluminum, the wavelength of the laser was 800 nm, and the width of pulse was 130 fs. The solvent system phase separation preparation was used to manufacture a polymer dispersed liquid crystal Fresnel zone plate. By the He-Ne laser, the properties of the zone plate was tested. The results show that the sample has good photoelectric regulation properties with the increasing voltage, the intensity of the focal point is able to be adjusted. Meanwhile, along the direction of optical axis, the difference between the location of the main focal point and its theoretical value is less than 5%, and the diffraction efficiency of the polymer dispersed liquid crystal Fresnel zone plate is 10.4% with the voltage is 160 V, which is close to the theoretical value of 12.1%. The results prove this design to be feasible.

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    HE Ru-shuang, ZHANG Bin, WANG Zhen-yu, TAO Wei-dong, PAN Xue-fen, DONG Jian-feng. A Polymer Dispersed Liquid Crystal Fresnel Zone Plate[J]. Acta Photonica Sinica, 2014, 43(9): 923003

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    Paper Information

    Received: Jan. 22, 2014

    Accepted: --

    Published Online: Oct. 23, 2014

    The Author Email: Ru-shuang HE (rshuanghe@sina.cn)

    DOI:10.3788/gzxb20144309.0923003

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