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Proceedings Paper

Diarylethene materials for photon-mode optical storage
Author(s): Fushi Zhang; Haobo Guo; Shouzhi Pu; Fan Sun; Xinhong Zhou; Peng Yuan; Duanyi Xu; Guosheng Qi
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Paper Abstract

Photon-mode recording of photochromic materials is regarded as a promising storage system, which has various advantages over the traditional heat-mode recording in terms of its data capacity and data-recording rate. Diarylethenes show good thermal stability and remarkable fatigue resistance, and these properties are indispensable for the applications to optical storage materials. In present work, several diarylethene compounds were synthesized, and a series of optical storage tests were carried out on the sample discs with diarylethenes as the recording materials. The recording based on these photochromic materials was photon-type,and the recorded regions appeared as faded dots. 780, 650 and 532 nm lasers were used for writing on the corresponding discs, and the recorded information were readout by the same lasers respectively. A two-wavelength optical storage was realized on a mixed diarylethene recording layer by two laser beams of 532 nm and 650 nm synchronously. A higher data capacity can thus be expected to reach by using a multi-wavelength optical storage like that. Although the diarylethenes satisfy the minimum demands of optical storage systems, these molecules have one unsolved drawback: the lack of a non-destructive capability. In this work, Electric-locked properties were investigated in a BT3FP-OH thin film; the electric trigger could prevent the photochromic reactions, which provided a practicable non-destructive readout method. Three kinds of diarylethene derivatives linked by solvatochromic dye units wer fabricated; the theoretical investigation showed that reading at the wavelength of about 650-750 nm would destroy the recorded information no longer. Thus a non-destructive method could be constructed on these diarylethene molecules.

Paper Details

Date Published: 17 September 2002
PDF: 12 pages
Proc. SPIE 4930, Advanced Optical Storage Technology, (17 September 2002); doi: 10.1117/12.483335
Show Author Affiliations
Fushi Zhang, Tsinghua Univ. (China)
Haobo Guo, Tsinghua Univ. (China)
Shouzhi Pu, Tsinghua Univ. (China)
Fan Sun, Tsinghua Univ. (China)
Xinhong Zhou, Tsinghua Univ. (China)
Peng Yuan, Tsinghua Univ. (China)
Duanyi Xu, Tsinghua Univ. (China)
Guosheng Qi, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 4930:
Advanced Optical Storage Technology
Duanyi Xu; Seiya Ogawa, Editor(s)

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