Effect of photo-sensitizer and thermo-initiator concentrations on holographic recording performance of PQ/PMMA photopolymer

Yuxin Chen; Haiyang Song; Xi Chen; Chenhao Wu; Zhiyun Huang; Yuanyin Zhang; Xiao Lin; Xiaodi Tan

doi:10.1117/12.2573797

15 June 2020 Effect of photo-sensitizer and thermo-initiator concentrations on holographic recording performance of PQ/PMMA photopolymer

Yuxin Chen, Haiyang Song, Xi Chen, Chenhao Wu, Zhiyun Huang, Yuanyin Zhang, Xiao Lin, Xiaodi Tan

Author Affiliations +

Proceedings Volume 11522, Optical Manipulation and Structured Materials Conference 2020; 115220Z (2020) https://doi.org/10.1117/12.2573797
Event: SPIE Technologies and Applications of Structured Light, 2020, Yokohama, Japan

Abstract

The concentration of photosen-sitizer is an important factor affecting the properties of holographic materials. Most researchers use doping or copolymerization methods to increase the saturation dissolvability of photo-sensitizer. However, the addition of multiple components will reduce the molecular mass of the photoproducts and the polymer substrate, resulting in poor stability of the grating. In this paper, we studied the solubility of phenanthraquinone (PQ) in MMA at different temperatures. At 60 °C, the solubility of PQ could reach 1.8%. Meanwhile, we found that the thermo-initiator concentration of 2,2-Azobis(AIBN) affected long-chain carbon polymerization. Therefore, proper concentration balance has a huge impact on the performance of the materials. Finally, we obtained a relatively suitable concentration balance of PQ/PMMA photopolymer, making it more suitable for volume holographic data storage.

Citation Download Citation

Yuxin Chen, Haiyang Song, Xi Chen, Chenhao Wu, Zhiyun Huang, Yuanyin Zhang, Xiao Lin, and Xiaodi Tan "Effect of photo-sensitizer and thermo-initiator concentrations on holographic recording performance of PQ/PMMA photopolymer", Proc. SPIE 11522, Optical Manipulation and Structured Materials Conference 2020, 115220Z (15 June 2020); https://doi.org/10.1117/12.2573797

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