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Proceedings Paper

Silver island films for write-once optical storage media
Author(s): Kazutaka Baba; Kazuhiro Hayashi; Mitsunobu Miyagi
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Paper Abstract

A silver island film has been investigated as write-once optical storage media for commercially available 800 nm-laser diodes. The silver island film deposited at a room temperature exhibits broad resonance-type reflection characteristics in the wide wavelength regions from 430 to 850 nm due to the resonance of free electrons in silver islands. By heating the film at a temperature of >120 degree(s)C, the reflection drastically lowers in the longer wavelength region near 800 nm from the change of the resonance characteristics of the free electrons caused by the thermal deformation of the silver islands. Laser writing on the silver island films with the 820 nm-laser diode is demonstrated. In addition, it is shown that the silver island films can also be used for the shorter wavelength region of 450-500 nm since the resonance peak disappears by heating at the temperature of >500 degree(s)C from the oxidization of the silver islands.

Paper Details

Date Published: 12 October 1994
PDF: 7 pages
Proc. SPIE 2338, 1994 Topical Meeting on Optical Data Storage, (12 October 1994); doi: 10.1117/12.190181
Show Author Affiliations
Kazutaka Baba, Tohoku Univ. (Japan)
Kazuhiro Hayashi, Tohoku Univ. (Japan)
Mitsunobu Miyagi, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 2338:
1994 Topical Meeting on Optical Data Storage
David K. Campbell; Martin Chen; Koichi Ogawa, Editor(s)

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