• Chinese Journal of Lasers
  • Vol. 31, Issue 4, 457 (2004)
[in Chinese]1、*, [in Chinese]1, [in Chinese]1, [in Chinese]1, [in Chinese]1, [in Chinese]1, [in Chinese]2, [in Chinese]2, [in Chinese]2, [in Chinese]2, and [in Chinese]2
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  • 1[in Chinese]
  • 2[in Chinese]
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    [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Study of Holographic Image Storage in Rewritable Photochromic Fulgide Material[J]. Chinese Journal of Lasers, 2004, 31(4): 457 Copy Citation Text show less

    Abstract

    A new type of organic photochromic material―fulgide/PMMA film was investigated as a rewritable holographic recording medium. The bistable absorption spectra of the fulgide/PMMA film were measured. The maximum absorption of the colored state was centered at 513 nm, the peak absorption of the bleached state was at 370 nm. Based on the bistable states of the photochromic fulgide, holographic images were stored on the 10 μm film. Argon laser (514.5 nm) was used as recording light. The relation between the diffraction efficiency and the exposure was measured, which showed that the maximal diffraction efficiency was about 1% under the exposure 1 J/cm2 or so. Holographic gratings recorded on the film and diffraction images recovered by the reference beam were obtained. Factors influencing the recovery image′s quality were analyzed. The holographic gratings recorded on the film can be kept for over one year in darkness at room temperature, which can be erased by UV light. The sample can be written, read and erased in many times. The experimental results show that the fulgide can be used as a good rewritable holographic storage material.
    [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Study of Holographic Image Storage in Rewritable Photochromic Fulgide Material[J]. Chinese Journal of Lasers, 2004, 31(4): 457
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