Share Email Print

Proceedings Paper

Selenium Alloy Film For New Erasable Optical Disk Media
Author(s): N. Koshino; M. Maeda; Y. Goto; K. Itoh; S. Ogawa
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Selenium film alloyed with indium and antimony has good characteristics for erasable optical disk media. Depending on the conditions of the irradiation directed to the film, it exibits two different reflectances and geometrical deformations,.and the change between these two states is reversible. The mechanism of the reversible changes is different from amorphous-to-crystalline phase transition. Both states are definitely crystalline, which have been confirmed by transmission electron microscope analysis. The film has a good durability of write-erase cycles and is chemically stable. The disk sample has been confirmed to be capable of writing and erasing at a speed of 600 rpm. The resolution is sufficient to record a bit of 1 pm length on the disk. Carrier-to-noise ratio is fairly good. This film also has a potential for higher signal transfer rates.

Paper Details

Date Published: 12 April 1985
PDF: 6 pages
Proc. SPIE 0529, Optical Mass Data Storage I, (12 April 1985); doi: 10.1117/12.946429
Show Author Affiliations
N. Koshino, Fujitsu Laboratories Ltd. (Japan)
M. Maeda, Fujitsu Laboratories Ltd. (Japan)
Y. Goto, Fujitsu Laboratories Ltd. (Japan)
K. Itoh, Fujitsu Laboratories Ltd. (Japan)
S. Ogawa, Fujitsu Laboratories Ltd. (Japan)

Published in SPIE Proceedings Vol. 0529:
Optical Mass Data Storage I
Robert A. Sprague, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?