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Proceedings Paper

Phthalocyanine CD-R for high-speed recording
Author(s): Chiaki Yokota; T. Sasakawa; Hiroyuki Hyakutake
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Paper Abstract

We have developed CD-R media using phthalocyanine dye for the recording layer. This phthalocyanine CD-R has good recording performance in high speed and normal speed recording. We analyzed this behavior compared to cyanine CD-R, and found that even the shortest pits (3T) in phthalocyanine CD-R were sufficiently formed in high speed recording. On the other hand, it is difficult for cyanine CD-R to form the short pit sufficiently by irradiation of a short laser pulse corresponding to the high speed recording. We conclude that the difference in the shortest pit (3T) formation between phthalocyanine CD-R and cyanine CD-R for high speed recording is due to the difference in the dye decomposition process. That is, the phthalocyanine dye is decomposed more rapidly than the cyanine dye for less than 0.5 microsecond(s) of the laser pulse irradiation, resulting the effective formation of the shortest pit (3T) in high speed recording.

Paper Details

Date Published: 8 September 1995
PDF: 9 pages
Proc. SPIE 2514, Optical Data Storage '95, (8 September 1995); doi: 10.1117/12.218741
Show Author Affiliations
Chiaki Yokota, Mitsui Toatsu Chemicals Inc. (Japan)
T. Sasakawa, Mitsui Toatsu Chemicals Inc. (Japan)
Hiroyuki Hyakutake, Mitsui Toatsu Chemicals Inc. (Japan)

Published in SPIE Proceedings Vol. 2514:
Optical Data Storage '95
Gordon R. Knight; Hiroshi Ooki; Yuan-Sheng Tyan, Editor(s)

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