Slow light phenomenon and extraordinary magnetooptical effects in periodic nanostructured media

Physical nature of the magnetooptical effects enhancement in periodic nanostructured media is investigated. The correlation between group velocity and the Faraday rotation peaks is found. The Faraday rotation gets its maximum values at vanishing group velocity. It is shown that in the vicinity of th...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2009-04, Vol.321 (7), p.826-828
Main Authors: Belotelov, V.I., Kalish, A.N., Kotov, V.A., Zvezdin, A.K.
Format: Article
Language:English
Subjects:
Magnetooptics
Photonic crystal
Slow light
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Summary:Physical nature of the magnetooptical effects enhancement in periodic nanostructured media is investigated. The correlation between group velocity and the Faraday rotation peaks is found. The Faraday rotation gets its maximum values at vanishing group velocity. It is shown that in the vicinity of the photonic band gap the Faraday angle is inversely proportional to the group velocity and directly proportional to the magnetooptical parameter Q averaged along the period of the structure. At this the efficiency of light–magnetic-matter interaction increases significantly. Thus, the increase of the magnetooptical effects in magnetic periodic systems is related to the slow wave phenomenon.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2008.11.049