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

    Authors

    K. Balasubramanian

    Comments

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    Abbreviated Journal Title

    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.

    Journal 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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