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Proceedings Paper

Wavelength dependence of the dynamic Faraday effect in magnetic liquids
Author(s): Beatrice Payet; Pascal Daveze; Lionel Delaunay
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Paper Abstract

We study influence of wavelength on 'dynamic' Faraday effect in the ferrofluids. The applied magnetic field is parallel with the light direction, and is sinusoidal alternative. The alignment of magnetic agglomerates, in the field direction, creates some birefringence giving induced circular magneto- optic effects. We present relaxation curves. We show that the relaxation frequency is (lambda) -independent. On the other hand, we notice an alteration of this relaxation in high field frequency. It seems that the less the wavelength, the more important the alteration. In this case, (lambda) is no more important compared with the magnetic agglomerates size. Then particles can scatter the light. The effect is a little more important with the applied field amplitude. Finally we study the light polarization state versus the magnetic amplitude. It does not show a significant (lambda) - influence.

Paper Details

Date Published: 17 September 1997
PDF: 6 pages
Proc. SPIE 3098, Optical Inspection and Micromeasurements II, (17 September 1997); doi: 10.1117/12.281191
Show Author Affiliations
Beatrice Payet, Univ. Jean Monnet (France)
Pascal Daveze, Univ. Jean Monnet (France)
Lionel Delaunay, Univ. Jean Monnet (France)

Published in SPIE Proceedings Vol. 3098:
Optical Inspection and Micromeasurements II
Christophe Gorecki, Editor(s)

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