Volume 52, Number 6, December II 2000
|Page(s)||620 - 626|
|Section||Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics|
|Published online||01 September 2002|
Magnetic-field effects on coherent backscattering of light in case of Mie spheres
University of Konstanz - Box 5560, D-78457 Konstanz, Germany
2 Institut Charles Sadron - 6 rue Boussingault, F-67083 Strasbourg Cedex, France
Accepted: 17 October 2000
Magneto-optical Faraday rotation destroys the coherent backscattering enhancement of elastically multiple scattered light. In addition, Faraday rotation has been predicted, especially for Mie scattering, to cause a shift of the coherent backscattering cone off the exact backscattering direction in case of circular polarized light, or a twin peak in case of linear polarization (see Lenke R., Maret G. Eur. Phys. J. B 172000171). In this letter we report the first experimental observations of these predictions. Moreover, we have observed an unexpected transversal asymmetry in the backscattered intensity, i.e. an asymmetric photon flux perpendicular to the external magnetic field and perpendicular to the direction of the incident light.
PACS: 42.25.Dd – Wave propagation in random media / 42.25.Hz – Interference / 78.20.Ls – Magneto-optical effects
© EDP Sciences, 2000
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