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Proceedings Paper

Optical and thermal properties of some indolenine cyanine dyes used as optical recording materials
Author(s): Shuqing Sun; Ping Chen; Deshui Zheng; Tsuneki Okasaki; Masaaki Hayami
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Paper Abstract

Compact Disc Recordable (CD-R) and Digital Versatile Disc Recordable (DVD-R) are discs where enormous mounts of digital data can be recorded. The reflection, absorption and transmission rate of laser beam in the layer of CD-R at 780 nm and DVD-R at 650 nm with no reflecting layer were numerically calculated and optical properties of a dye film was measured. The results indicate that it is preferable to use dye as the recording media with n and k value in the range of 2.0 to 2.8 and 0.02 to 0.22, respectively. Thermal properties of these dye materials were analyzed by Differential Scanning Calorie method. The decomposition temperature of dyes were varied from 200 to 300 degree(s)C resulted from different methine length, substitutes and counter anions. The optical recording mechanism of CD-R and DVD-R were also briefly discussed based on the above results.

Paper Details

Date Published: 10 August 1998
PDF: 6 pages
Proc. SPIE 3562, Optical Storage Technology, (10 August 1998); doi: 10.1117/12.318488
Show Author Affiliations
Shuqing Sun, Institute of Photographic Chemistry (China)
Ping Chen, Institute of Photographic Chemistry (China)
Deshui Zheng, Institute of Photographic Chemistry (China)
Tsuneki Okasaki, Nippon Kankoh-Shikiso Kenkyusho (Japan)
Masaaki Hayami, Nippon Kankoh-Shikiso Kenkyusho (Japan)

Published in SPIE Proceedings Vol. 3562:
Optical Storage Technology
Duanyi Xu; Seiya Ogawa, Editor(s)

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