Volume 34, Number 4, May I 1996
|Page(s)||299 - 304|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
Magneto-vortical birefringence in a ferrofluid
Laboratoire d'Acoustique et Optique de la Matière
Condensée (Associated with the Centre National de la Recherche
Scientifique.) , Université Pierre et Marie Curie - Tour 13, Case 78, 4 place
Jussieu, 75252 Paris Cedex 05, France
2 Department of Physics of Complex Systems, The Weizmann Institute of Science, Rehovot 76100, Israel
Accepted: 14 March 1996
A dilute magnetic fluid (MF) submitted to a static magnetic field exhibits an optical birefringence. In a vortical flow the optical axis of the MF is modified. A measurement of this magnetic birefringence and of the angular displacement of the optical axis is transformed into a non-intensive and sensitive measurement of the local vorticity of the flow.
PACS: 75.50.Mm – Magnetic liquids / 42.25.Lc – Birefringence / 47.32.-y – Rotational flow and vorticity
© EDP Sciences, 1996
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