Holographic recording characteristics and physical mechanism of zinc methacrylate/nitroaniline‐co‐doped poly(methyl methacrylate)/9,10‐phenanthrenequinone photopolymers |
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| Authors: | Cheng‐Jung Ko Po‐Lin Chen Yi‐Nan Hsiao Shiuan‐Huei Lin Wha‐Tzong Whang Ken Y Hsu Kuo‐Jung Huang Chun‐Chao Chen I‐Hsiang Tseng Mei‐Hui Tsai |
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| Affiliation: | 1. Department of Materials Science and Engineering, National Chiao Tung University, 1001 Ta‐Hsueh Road, Hsin‐Chu 300, Taiwan, Republic of China;2. Department of Photonics and Institute of Electro‐Optical Engineering, National Chiao Tung University, Hsin‐Chu 300, Taiwan, Republic of China;3. Department of Electrophysics, National Chiao Tung University, Hsin‐Chu 300, Taiwan, Republic of China;4. Email:wtwhang@ mail.nctu.edu.tw;7. Department of Chemical and Materials Engineering, National Chin‐Yi University of Technology, Taichung 411, Taiwan, Republic of China |
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| Abstract: | In this study we developed an approach to improve the characteristics of photopolymers for holographic data storage. Through codoping different compounds, N,N‐dimethyl‐4‐nitroaniline (DMNA) and zinc methylacrylate (Zn(MA)2), into 9,10‐phenanthrenequinone (PQ) doped poly(methyl methacrylate) (PMMA), the diffraction efficiency and the value of dynamic range (M#) have been progressed. We enhanced the diffraction efficiency (from 36.1 to 86.2%) and the dynamic range (M#, from 2.9 to 10.7) of PQ‐doped PMMA through codoping with DMNA and Zn(MA)2. Using mass spectrometry and X‐ray photoelectron spectroscopy, we investigated the mechanism behind the improvements in optical storage induced by the presence of Zn(MA)2 and DMNA in PMMA/PQ. POLYM. ENG. SCI., 2013. © 2012 Society of Plastics Engineers |
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