Tri-color composite volume H-PDLC grating and its application to 3D color autostereoscopic display

Kangni Wang, Jihong Zheng, Hui Gao, Feiyue Lu, Lijia Sun, Shizhuo Yin, Songlin Zhuang

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    16 Scopus citations

    Abstract

    A tri-color composite volume holographic polymer dispersed liquid crystal (H-PDLC) grating and its application to 3-dimensional (3D) color autostereoscopic display are reported in this paper. The composite volume H-PDLC grating consists of three different period volume H-PDLC sub-gratings. The longer period diffracts red light, the medium period diffracts the green light, and the shorter period diffracts the blue light. To record three different period gratings simultaneously, two photoinitiators are employed. The first initiator consists of methylene blue and ptoluenesulfonic acid and the second initiator is composed of Rose Bengal and N-phenyglycine. In this case, the holographic recording medium is sensitive to entire visible wavelengths, including red, green, and blue so that the tri-color composite grating can be written simultaneously by harnessing three different color laser beams. In the experiment, the red beam comes from a He-Ne laser with an output wavelength of 632.8 nm, the green beam comes from a Verdi solid state laser with an output wavelength of 532 nm, and the blue beam comes from a He-Cd laser with an output wavelength of 441.6 nm. The experimental results show that diffraction efficiencies corresponding to red, green, and blue colors are 57%, 75% and 33%, respectively. Although this diffraction efficiency is not perfect, it is high enough to demonstrate the effect of 3D color autostereoscopic display.

    Original languageEnglish (US)
    Pages (from-to)31436-31445
    Number of pages10
    JournalOptics Express
    Volume23
    Issue number24
    DOIs
    Publication statusPublished - Nov 30 2015

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    All Science Journal Classification (ASJC) codes

    • Atomic and Molecular Physics, and Optics

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