Theory of the magneto-optic Kerr effect in the near field

Vladimir A. Kosobukin

doi:10.1117/12.218703

6 September 1995 Theory of the magneto-optic Kerr effect in the near field

Vladimir A. Kosobukin

Proceedings Volume 2535, Near-Field Optics; (1995) https://doi.org/10.1117/12.218703
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

A theory is developed for the magneto-optic Kerr effect (MOKE) excited via an optical near field. The model under consideration includes a semi-infinite ferromagnet and a small non- magnetic metal particle which is located nearby and possesses a long-living surface plasmon. A multiple-scattering formulation of the problem is given. Considering the Rayleigh scattering of light and the magneto-optical light polarization conversion as elementary events, all the essential optical processes are classified, and those which contribute to the near-field MOKE are treated separately. An effective particle polarizability, responsible for a near-field excitation, is treated self-consistently to all orders in light-matter scattered light field is discussed with special emphasis on the change of optical polarization due to MOKE.

Citation Download Citation

Vladimir A. Kosobukin "Theory of the magneto-optic Kerr effect in the near field", Proc. SPIE 2535, Near-Field Optics, (6 September 1995); https://doi.org/10.1117/12.218703

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