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Proceedings Paper

Magneto-Optical Memory Experiments On Chromium Dioxide Flexible Disk
Author(s): Tatsuo Nomura; Haruki Tokumaru
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Paper Abstract

A new type of magneto-optical memory system using a chromium dioxide (Cr02) disk combined with a magnetic garnet film was described. Thermomagnetic recording was done onto the 35 cm diameter Cr02 disk with the focused Ar-laser beam and a recorded signal was read out magneto-optically through a magnetic garnet film placed close to the disk surface. A carrier-to-noise ratio of 35 dB was obtained at a disk speed of 50 m/s and frequency of 7 MHz. Track width of 3-4 μm was observed. A real time video recording experiment was successfully demonstrated.

Paper Details

Date Published: 1 January 1983
PDF: 7 pages
Proc. SPIE 0382, Optical Data Storage, (1 January 1983); doi: 10.1117/12.970210
Show Author Affiliations
Tatsuo Nomura, NHK (Japan Broadcasting Corporation) (Japan)
Haruki Tokumaru, NHK (Japan Broadcasting Corporation) (Japan)

Published in SPIE Proceedings Vol. 0382:
Optical Data Storage
Di Chen, Editor(s)

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