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  • Title: Standing wave polarization holography for realizing liquid crystal Pancharatnum-Berry phase lenses.
    Author: He Z, Yin K, Wu ST.
    Journal: Opt Express; 2020 Jul 20; 28(15):21729-21736. PubMed ID: 32752445.
    Abstract:
    A standing wave polarization holography setup is proposed to generate the desired polarization field for fabricating both on-axis and off-axis liquid crystal Pancharatnum-Berry phase lenses. Compared to other interference exposure setups, standing wave interferometry can double the polarization field amplitude because it does not require a beam splitter. Moreover, the optical axis angle of the lenses can be easily adjusted without realigning the optical setup. Based on the design, we first theoretically derive the polarization field distribution. In the experiment, we build the recording optical system and fabricate a series of on-axis and off-axis lenses. Further optical characterization proves the high diffraction efficiency of the fabricated lenses.
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