TITLE

Theory of scanning near-field magnetooptical microscopy

AUTHOR(S)
Kosobukin, V. A.
PUB. DATE
July 1998
SOURCE
Technical Physics;Jul98, Vol. 43 Issue 7, p824
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
An analytical theory of scanning near-field magnetooptical microscopy is developed. The theory is based on the elastic scattering of light by small, resonantly polarizable particles, which are used to scan the plane surface of a nonuniformly magnetized medium. The effective polarizability of the particles is calculated with the effect of dynamic “image forces” taken into account in all orders of perturbation theory with respect to the interaction of the particle with a demagnetized ferromagnet, and the magnetooptical perturbation is calculated to first order in the magnetization. The major contributions to the magnetooptical light scattering for a ferromagnetic structure magnetized perpendicular to the surface are found, including a quasistatic approximation for the near-field particle–magnet interaction. The optical size resolution of a magnetic (dielectric) inhomogeneity is estimated. © 1998 American Institute of Physics.
ACCESSION #
7324993

 

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