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Dynamics of acrylamide-based photopolymer holographic gratings

Chen Ke Cheng Jian-Qun Xiao Yong Tang Dao-Guang Huang Ming-Ju

Dynamics of acrylamide-based photopolymer holographic gratings

Chen Ke, Cheng Jian-Qun, Xiao Yong, Tang Dao-Guang, Huang Ming-Ju
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  • Abstract views:  3877
  • PDF Downloads:  1002
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Publishing process
  • Received Date:  04 June 2008
  • Accepted Date:  12 July 2008
  • Published Online:  05 January 2009

Dynamics of acrylamide-based photopolymer holographic gratings

  • 1. 河南大学光学与光电子技术研究所,物理与电子学院,开封 475004

Abstract: The theoretical photochemical and photopolymerization diffusion model and the dynamic parameters of the photopolymer are studied. A new holographic photopolymer which is composed of acrylamide as monomer, ployvinylalcohol as binder, triethanolamine as initiator sensitized by erythrosine B is prepared. By means of fitting the experimental data of transmittance and diffraction efficiency as a function of time, the influence of the molar-absorption coefficient ε, the quantum yield Φ and the photobleaching coefficient k in photochemical dynamics for different concentrations of erythrosine B, and polymerization rate k0, diffusion time constant τD and the maximal refractive index modulation Δn in photopolymerization diffusion dynamics for different exposure intensity, are presented.

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