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Proceedings Paper

Multilayer thin-film media for optical recording
Author(s): Bala Subramanian
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Paper Abstract

A write-once optical data storage media has been developed which is suitable for tape formats. The recording layer is a metal alloy system which is sputter deposited onto polymeric substrates as a single-layer thin film. The media are manufactured using a continuous sheet process, where the reflectivity of the film at 840nm can be selectively varied between 30 and 70%. These films have been characterized for laser write sensitivity, optical properties, surface chemistry, and environmental stability. An abrasion resistant hard overcoat is applied directly onto the active surface in a second vacuum deposition step. The media performance has been found to be compatible with direct hard-overcoats with no degradation in write sensitivity.

Paper Details

Date Published: 1 December 1990
PDF: 19 pages
Proc. SPIE 1323, Optical Thin Films III: New Developments, (1 December 1990); doi: 10.1117/12.22381
Show Author Affiliations
Bala Subramanian, CREOL/Univ. of Central Florida (United States)

Published in SPIE Proceedings Vol. 1323:
Optical Thin Films III: New Developments
Richard Ian Seddon, Editor(s)

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