17 September 2002 Synthesis and multiwavelength optical recording properties of two new photochromic diarylethenes
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Proceedings Volume 4930, Advanced Optical Storage Technology; (2002); doi: 10.1117/12.483274
Event: Photonics Asia, 2002, Shanghai, China
Abstract
1,2-bis(2-methyl-5-(2-(1,3-dioxolane))-thien-3-yl)perfluorocyclopentene (1a) and 1,2-bis(2-methyl-5- 4-N,N-dimethyl-phenyl)-thien-3-yl)perfluorocyclopentene (2a) were synthesized and rewritable photo-mode muti-wavelength optical recording by the use of them was performed successfully. In amorphous film photochromic media, two laser beams of 532 nm and 650 nm were used in recording and readout simultaneously, and signals with high S/N ratio were detected. The results show that the reflectivity difference between the recorded dot and unrecorded region is greater than 50%, and above all, there is no crosstalk existing in the two diarylethenes, which it is very important to implement successfully multi-wavelength optical recording. The photochromic properties of them were also discussed.
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Shouzhi Pu, Fushi Zhang, Fan Sun, Xinhong Zhou, Haobo Guo, Peng Yuan, Xuesong Mai, Guosheng Qi, "Synthesis and multiwavelength optical recording properties of two new photochromic diarylethenes", Proc. SPIE 4930, Advanced Optical Storage Technology, (17 September 2002); doi: 10.1117/12.483274; https://doi.org/10.1117/12.483274
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KEYWORDS
Optical recording

Absorption

Reflectivity

Polymethylmethacrylate

Optical storage

Ultraviolet radiation

Aluminum

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