High density magneto-optical disk technologies

Author

Tanaka, Y. ; Kurebayashi, M. ; Maeda, T. ; Torazawa, K. ; Takahashi, A. ; Ohta, N. ; Yonezawa, S.

Author_Institution

Multimedia Syst. R&D Div., Hitachi Ltd., Yokohama, Japan

Volume

43

Issue

3

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

475

Lastpage

482

Abstract

Many types of high density recording technologies have been proposed in the field of magneto-optical recording to satisfy demands of storing a large amount of digital information. Magnetically induced super resolution (MSR) is one of the most hopeful technology. However, trials of using the MSR technology in a realistic magneto-optical system were not fully investigated. Previously, we reported the concept and fundamental results of experiments and calculations of a high density magneto-optical recording system using a combination of a center-aperture-detection type of MSR (CAD-MSR) disk and other technologies. In this study, we have improved each of the technology discussed in our previous report. Moreover, we have evaluated the feasibility of magneto-optical disk systems which have a 4 Gbit/in² density with taking account of the margins

Keywords

digital storage; magneto-optical recording; center aperture detection type disk; digital information storage; experiments; high density magneto-optical disk; high density recording technologies; magnetically induced super resolution; magneto-optical recording; magneto-optical recording system; margins; Disk recording; Laser transitions; Magnetic domains; Magnetic fields; Magnetic modulators; Magnetic recording; Magnetooptic recording; Optical pulses; Power lasers; Pump lasers;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.628661

Filename

628661