Co-doping with polysquaraine enhances the holographic optical data storage of PMMA/PQ photopolymers

Cheng Jung Ko, Yeh Lu Chang, Yi Nan Hsiao, Po Lin Chen, Shiuan-Huei Lin, Wha Tzong Whang*, Ken-Yuh Hsu, Mei Hui Tsai, Wen Yen Tsang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

In this study, we synthesised poly(3-octylpyrrole-co-squaric acid) (PSQ3), a polysquaraine, through the reaction of 3-octylpyrrole and squaric acid, and then co-doped it with phenanthrenequinone (PQ) into poly(methyl methacrylate) (PMMA) to improve the holographic data storage characteristics of the photopolymer. The photopolymers co-doped with relatively small amounts of PSQ3 exhibited greatly improved holographic recording characteristics, including superior diffraction efficiency and dynamic range (M#). Among the samples co-doped with PQ and PSQ3, the maximum diffraction efficiency reached 54.8% (cf. 9.0% for PMMA/PQ) without further downgrade and the value of M# reached 1.05 (cf. 0.46 for PMMA/PQ). Therefore, the holographic data storage characteristics of the photopolymer PMMA/PQ were improved through co-doping with PSQ3.

Original languageEnglish
Pages (from-to)1215-1219
Number of pages5
JournalJournal of Modern Optics
Volume58
Issue number14
DOIs
StatePublished - 10 Aug 2011

Keywords

  • holographic recording
  • optical data storage
  • phenanthrenequinone
  • poly(methyl methacrylate)
  • polysquaraine

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