Highly concentrated phenanthraquinone-doped co-monomer photopolymer for holographic data storage

Zeyi Zeng; Po Hu; Jinhong Li; Junchao Jin; Qingdong Li; Junhui Wu; Xiao Lin; Xiaodi Tan

doi:10.1117/12.2681791

4 October 2023 Highly concentrated phenanthraquinone-doped co-monomer photopolymer for holographic data storage

Zeyi Zeng, Po Hu, Jinhong Li, Junchao Jin, Qingdong Li, Junhui Wu, Xiao Lin, Xiaodi Tan

Proceedings Volume 12684, ODS 2023: Industrial Optical Devices and Systems; 1268402 (2023) https://doi.org/10.1117/12.2681791
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Conference Poster

Abstract

Photopolymers are considered to be the most potential holographic storage materials due to their advantages of high resolution, real-time recording and low-cost preparation. Thereinto, Phenanthraquinone-doped polymethyl methacrylate (PQ/PMMA) photopolymers have excellent properties such as easy to prepare, controllable thickness, negligible photoinduced volume shrinkage, and long life-time for holographic data storage. Nevertheless, the current holographic properties such as diffraction efficiency and photosensitivity of PQ/PMMA photopolymers cannot meet the requirements of the information writing-speed. It is well known that the holographic properties of materials can be improved by optimizing preparation conditions and doping nanoparticles. The concentration of PQ can increased to 1.0 wt.% using 60 °C as the prepolymerization temperature in our previous report. Herein, via introducing a new monomer pentaerythritol-tetrakis-3-mercaptopropionate (PETMP) into PQ/PMMA, the photosensitizer concentration of PQ could be increased to 2.0 wt.% compared with PQ/PMMA. And under the same production process conditions, both of the photosensitivity and diffraction efficiency of PETMP-PQ/PMMA increased ~20 times (from ∼0.27 cm/J to ∼5.61 cm/J) and more than 25% (from ~50% to ∼75%). Finally, by the use of the PETMP−PMMA/PQ in a collinear holography system, it appeared to be promising for a fast but low bit error rate(BER) in holographic information storage. The current study shows that, PETMP-PQ/PMMA material has the excellent potential for holographic data storage. Keywords: Photopolymer, PQ concentration, photosensitivity, co-monomer

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Zeyi Zeng, Po Hu, Jinhong Li, Junchao Jin, Qingdong Li, Junhui Wu, Xiao Lin, and Xiaodi Tan "Highly concentrated phenanthraquinone-doped co-monomer photopolymer for holographic data storage", Proc. SPIE 12684, ODS 2023: Industrial Optical Devices and Systems, 1268402 (4 October 2023); https://doi.org/10.1117/12.2681791

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