Optics in Magnetic Multilayers and Nanostructures

Optics in Magnetic Multilayers and Nanostructures

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Features

  • Presents full, step-by-step derivations of the formulae for optics in anisotropic media
  • Illustrates the basic concepts on media that would be optically isotropic in the absence of magnetization
  • Analyzes the simultaneous effect of crystalline symmetry and arbitrarily oriented magnetization on the form of permittivity
  • Provides necessary information for applications including magnetic microscopy, reading data stored in magnetooptic disks, and magnetooptic light modulation as well as for optical metrology of magnetic materials
  • Summary

    In the continuing push toward optical computing, the focus remains on finding and developing the right materials. Characterizing materials, understanding the behavior of light in these materials, and being able to control the light are key players in the search for suitable optical materials. Optics in Magnetic Multilayers and Nanostructures presents an accessible introduction to optics in anisotropic magnetic media.

    While most of the literature presents only final results of the complicated formulae for the optics in anisotropic media, this book provides detailed explanations and full step-by-step derivations that offer insight into the procedure and reveal any approximations. Based on more than three decades of experimental research on the subject, the author explains the basic concepts of magnetooptics; nonreciprocal wave propagation; the simultaneous effect of crystalline symmetry and arbitrarily oriented magnetization on the form of permittivity tensors; spectral dependence of permittivity; multilayers at polar, longitudinal, transverse, and arbitrary magnetization; the effect of normal or near-normal incidence on multilayers; and anisotropic multilayer gratings.

    Making the subject of magnetooptics and anisotropic media approachable by the nonspecialist, Optics in Magnetic Multilayers and Nanostructures serves as an ideal introduction to newcomers and an indispensable reference for seasoned researchers.

    Table of Contents

    INTRODUCTION
    History
    Magnetized Medium
    Propagation Parallel to Magnetization
    Voigt Effect
    Propagation in Anisotropic Media
    Reflection at an Arbitrary Angle of Incidence
    Multilayer Response
    References

    MATERIAL TENSORS
    Introduction
    Tensors in Magnetic Crystals
    Rotation About an Axis
    Frequency Dependence
    Lorentz-Drude Model
    Semiclassical Susceptibility
    References

    ANISOTROPIC MULTILAYERS
    Introduction
    Proper Modes
    Matrix Representation of Planar Structures
    Waves in Isotropic Regions
    Reflection and Transmission
    Single Interface
    References

    POLAR MAGNETIZATION
    Introduction
    Normal Incidence
    Analytical Formula
    Magnetic Superlattices
    Oblique Incidence
    References

    LONGITUDINAL MAGNETIZATION
    Introduction
    Transfer Matrix
    Magnetic Film-Magnetic Substrate System
    Approximate Solution for the Oblique Incidence
    References

    TRANSVERSE MAGNETIZATION
    Introduction
    M Matrix
    Film-Substrate System at Transverse Magnetization
    Waveguide TM Modes
    References

    NORMAL INCIDENCE
    Introduction
    Wave Equation
    General M Matrix
    Examples
    Nearly Normal Incidence
    References

    ARBITRARY MAGNETIZATION
    Introduction
    Matrix Representation
    Single Interface
    Characteristic Matrix
    Magnetic Film
    Film-Spacer System
    Transmission in a Film Substrate System
    References

    ANISOTROPIC MULTILAYER GRATINGS
    Introduction
    Fields in the Grating Region
    Product of Series
    Matrix Representation
    Matrix Formulation of the Solution
    Homogeneous Anisotropic Region
    Transmission and Interface Matrices
    Wave Diffraction on the Grating
    Multilayer Periodic Structures
    Isotropic Layers at Normal Incidence
    Homogeneous Isotropic Layers at Oblique Incidence
    References

    APPENDIX A: CIRCULAR POLARIZATIONS
    APPENDIX B: FRESNEL FORMULAE
    APPENDIX C: ISOTROPIC MULTILAYERS
    Film-Substrate System
    Two-Layer System
    APPENDIX D: SINGLE LAYER AT POLAR MAGNETIZATION
    Single Interface
    Single Layer
    APPENDIX E: CHEBYSHEV POLYNOMIALS
    APPENDIX F: PROPER VALUE EQUATION
    INDEX

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