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Theory of magneto-optical effects in nanostructured ferromagnetics |
JOSA B, Vol. 29, Issue 7, pp. 1815-1821 (2012)
http://dx.doi.org/10.1364/JOSAB.29.001815
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Abstract
We present a theory of light interaction with a magnetic nanostructured material consisting of a periodic array of ferromagnetic nanocylinders magnetized along the symmetry axis. Using a multiple scattering approach, we calculated the amplitudes of diffracted waves in terms of multipole expansion coefficients and used the developed formalism to describe the experimentally observed enhancement of the magneto-optical effects in magnetic nanostructures. The analysis provides a physical interpretation of the enhancement in terms of interference between the resonant and nonresonant scattering processes. The resonant scattering is caused by excitation of dipole surface-plasmon eigenmodes; the nonresonant one is associated with the monopole modes.
© 2012 Optical Society of America
OCIS Codes
(050.1960) Diffraction and gratings : Diffraction theory
(230.3810) Optical devices : Magneto-optic systems
(240.6680) Optics at surfaces : Surface plasmons
ToC Category:
Optical Devices
History
Original Manuscript: April 17, 2012
Revised Manuscript: May 29, 2012
Manuscript Accepted: May 29, 2012
Published: June 27, 2012
Citation
Igor Pimenov and Vladislav Kurin, "Theory of magneto-optical effects in nanostructured ferromagnetics," J. Opt. Soc. Am. B 29, 1815-1821 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-7-1815
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