Magnetically modulated optical transmission of magnetic fluid films
Abbreviated Journal Title
J. Magn. Magn. Mater.
magnetic fluid; transmittance; attenuation distance; ORDERED STRUCTURES; THIN-FILMS; FERROFLUIDS; FIELD; Materials Science, Multidisciplinary; Physics, Condensed Matter
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/I-0 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/I-0 = exp(-L/delta), where the delta denotes the attenuation distance. It was further found that the delta varies with the magnetic field strength and the concentration of the fluid, but is independent of the sweep rate of the field. (C) 2002 Elsevier Science B.V. All rights reserved.
Journal of Magnetism and Magnetic Materials
Article; Proceedings Paper
"Magnetically modulated optical transmission of magnetic fluid films" (2002). Faculty Bibliography 2000s. 3259.