A wideband sensitive holographic photopolymer

• Published in: Chinese optics letters Vol. 3; no. 5; pp. 268 - 270
• Main Author: 黄明举 王素莲 王爱荣 弓巧侠 干福熹
• Format: Journal Article
• Language: English
• Published: Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 01-05-2005; Department of Physics, Henan University, Kaifeng 475001%Department of Physics, Henan University, Kaifeng 475001%Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
• Subjects: 亚甲蓝; 全息光敏聚合物; 宽频带灵敏度; 感光树脂
• ISSN: 1671-7694

A novel wideband sensitive dry holographic photopolymer sensitized by rose bengal (RB) and methylene blue (MB) is fabricated, the holographic storage characteristics of which are investigated under different exposure wavelengths. The result shows that the sensitive spectral band exceeds 200 nm in visible light range, the maximum diffraction efficiency under different exposure wavelengths is more than 40% and decreases with the decrease of exposure wavelength, the exposure sensitivity is not change with the exposure wavelength. This photopolymer is appropriate for wavelength multiplexing or multi-wavelength recording in digital holographic storage.