Open AccessVolume holographic recording in Irgacure 784-doped PMMA photopolymer
Author(s) -
Ying Liu,
Fei Fan,
Yifan Hong,
Jiawei Zang,
Guoguo Kang,
Xiaodi Tan
Publication year - 2017
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.020654
Subject(s) - photoinitiator , materials science , photopolymer , holographic data storage , diffraction efficiency , holography , refractive index , optics , doping , dopant , polarization (electrochemistry) , methyl methacrylate , light intensity , optoelectronics , polymer , composite material , polymerization , monomer , grating , chemistry , physics
Photoinitiator plays a crucial role on photopolymer. Unlike photoinitiator phenanthrenequinone (PQ), the solubility of Irgacure 784 dissolved in MMA is very high. In this paper, we use Irgacure 784 as photoinitiator doped in poly(methyl methacrylate)(PMMA)to make a bulk photopolymer with high photoinitiator concentration for holographic data storage. The effect of concentration of photoinitiator and record intensity are experimentally investigated. The results reveal the material has an optimum condition in holographic recording. A comparison between our material and the material of PQ doped PMMA is carried out by experiment. It is found that our material has better performance on diffraction efficiency, refractive index modulation and recording sensitivity. Besides, this material also has polarization sensitivity, which can be applied to polarization holography. With the capacity of recording polarization holography and conventional intensity holography simultaneously, the Irgacure 784 doped PMMA material is expected to be applied in holographic data storage.