Dynamic analysis of holographic gratings in amulti-wavelength visible light sensitive photopolymer |
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Authors: | Chen Ke Cheng Jian-Qun Wang Yan and Huang Ming-Ju |
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Institution: | Institute of Optics and Photoelectronic Technology, College of Physics and Electronics, Henan University, Kaifeng 475004, China |
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Abstract: | A dynamic theoretical model of photochemistry and
hologram formation in holographic photopolymer is established, and
the dynamic development process of holographic gratings in the
photopolymer is discussed with the model. A novel multi-wavelength
visible light sensitive photopolymer for holographic storage is
prepared. The influence of exposure wavelength on holographic
storage characteristics is analysed. By fitting the experimental
data of transmittance and diffraction efficiency to a function of
time with different exposure intensities and wavelengths, the
variations of dynamic parameters of photochemistry and
photopolymerization diffusion are presented. |
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Keywords: | photopolymer gratings transmittance diffraction
efficiency kinetics |
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