Magneto-optical storage card

Chengtao Yang; Qihua Fan; Hongyou Chen; Yanrong Li

doi:10.1117/12.416872

7 February 2001 Magneto-optical storage card

Chengtao Yang, Qihua Fan, Hongyou Chen, Yanrong Li

Proceedings Volume 4085, Fifth International Symposium on Optical Storage (ISOS 2000); (2001) https://doi.org/10.1117/12.416872
Event: Fifth International Symposium on Optical Storage (IS0S 2000), 2000, Shanghai, China

Abstract

A magneto-optical storage card is produced using magneto- optical recording medium. The magneto-optical card consists of a substrate and a multilayer film structure. The card substrate has the groove geometry pattern comprising the track pitch, the groove width, and the groove depth. As the magneto- optical recording medium, the RE-TM magneto-optical recording material is used. The card substrate is made of glass, on which the preformatted pattern is formed by a photolithography technology, the preformatted pattern is used for servo tracking and for pre-recording information for optical data storage. The prototype drive system for the magneto-optical card is capable of driving, writing/reading and erasing the MO card. The card has high reliability for information storage.

Citation Download Citation

Chengtao Yang, Qihua Fan, Hongyou Chen, and Yanrong Li "Magneto-optical storage card", Proc. SPIE 4085, Fifth International Symposium on Optical Storage (ISOS 2000), (7 February 2001); https://doi.org/10.1117/12.416872

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