Title

Materials And Design Issues Of Multilayer Magnetooptical Thin-Film Media For Optical-Recording

Title - Alternative

Opt. Eng.

Keywords

MAGNETOOPTICS; OPTICAL RECORDING; OPTICAL DATA STORAGE; THIN-FILM; OPTICS; OPTICAL MATERIALS; CO/PT LAYERED STRUCTURES; ANISOTROPIC MEDIA; CONSTANTS; METALS; STORAGE; READOUT; Optics

Abstract

The principles of magneto-optical (MO) recording and readout are reviewed and issues of thin film media design for MO disks are discussed. Essential criteria for improved media performance, and in particular, concepts of magneto-optical interactions in relation to multilayer designs for enhancing the polarization rotation in erasable magneto-optical media are considered. Examples of media design for improved performance are given. The role of sharp reflection edges such as those occurring near plasma edge resonances in metals is discussed. It is shown that rare earth hexaboride (RB6) reflector layers increase the polar Kerr rotation angle of MO media. Iso-Kerr rotation contours and iso-reflectance contours are developed to determine optimizing material properties for MO media design.

Publication Title

Optical Engineering

Volume

31

Issue/Number

12

Publication Date

1-1-1992

Document Type

Article

Language

English

First Page

2674

Last Page

2686

WOS Identifier

WOS:A1992KB84200020

ISSN

0091-3286

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