Silver island films for write-once optical storage media

Kazutaka Baba; Kazuhiro Hayashi; Mitsunobu Miyagi

doi:10.1117/12.190181

12 October 1994 Silver island films for write-once optical storage media

Kazutaka Baba, Kazuhiro Hayashi, Mitsunobu Miyagi

Proceedings Volume 2338, 1994 Topical Meeting on Optical Data Storage; (1994) https://doi.org/10.1117/12.190181
Event: Optical Data Storage '94, 1994, Dana Point, CA, United States

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.

Citation Download Citation

Kazutaka Baba, Kazuhiro Hayashi, and Mitsunobu Miyagi "Silver island films for write-once optical storage media", Proc. SPIE 2338, 1994 Topical Meeting on Optical Data Storage, (12 October 1994); https://doi.org/10.1117/12.190181

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