Two Dyes Co-Sensitized Photopolymer for Multi-Wavelength Holographic Recording

By : Zhai Fengxiao, Yang Kun, Yang Guang, Huang Mingju

Page No: 225-232

Abstract
A novel wide band photopolymer sensitized by Erythrosin B (ErB) and Methylene Blue (MB) is fabricated. The sensitive spectrum band of photopolymer exceeds 200nm in the visible light range due to the addition of two dyes. The holographic performances of the material are investigated under exposure of different wavelengths. The results show that the maximum diffraction efficiency, refractive index modulation and exposure sensitivity increases with the increase of the exposure wavelength. It is found that the photopolymer is suitable for wavelength multiplexing or multi-wavelength recording in digital holographic storage .

Authors :
Zhai Fengxiao and Yang Kun : College of Physics & Electronics Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China
Yang Guang : Department of Basic Science, Jiaozuo University, Jiaozuo 454000, P. R. China
Huang Mingju : College of Physics and Electronics, Henan University, Kaifeng 475004, P. R China