PQ:DMNA/PMMA photopolymer having amazing volume holographic recording at wavelength of insignificant absorption.
N, N-dimethyl-4-nitroaniline doping enables red-light holographic recording that was originally insensitive in thick phenanthrenequinone/poly(methyl methacrylate) photopolymer to have reasonable sensitivity. A volume hologram was recorded by a 647 nm laser with maximum diffraction efficiency of about 43% in a 2-mm-thick sample. A Bragg selectivity curve and an image hologram reconstruction are also demonstrated. These experimental results support recording material for volume holographic applications in an extended red spectral range.
Department of Materials Science and Engineering, National Chiao Tung Univeristy, Hsinchu, Taiwan.
Yu-Fang
YF
Chen
June-Hua
JH
Lin
Shiuan Huei
SH
Lin
Ken Y
KY
Hsu
Wha-Tzong
WT
Whang