Title

Magnetically Modulated Optical Transmission Of Magnetic Fluid Films

Keywords

Attenuation distance; Magnetic fluid; Transmittance

Abstract

The optical transmission of the magnetic fluid film under perpendicular magnetic fields was investigated by measuring the transmitted intensity of the normally incident light through the film. The transmittance I/I0 of the magnetic fluid film was observed to decrease with the increase of the magnetic field strength H due to the reduction in the area occupied by the relatively optic transparent liquid phase. Moreover, under a given H, the transmittance decreased exponentially with the increasing film thickness L, i.e. I/I0=exp(-L/δ), where the δ denotes the attenuation distance. It was further found that the δ varies with the magnetic field strength and the concentration of the fluid, but is independent of the sweep rate of the field. © 2002 Elsevier Science B.V. All rights reserved.

Publication Date

11-1-2002

Publication Title

Journal of Magnetism and Magnetic Materials

Volume

252

Issue

1-3 SPEC. ISS.

Number of Pages

104-106

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/S0304-8853(02)00629-7

Socpus ID

0037588017 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0037588017

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