Ellipsometry of magnetic fluid in a magnetic field

Spectral Dependencies of Magnetooptical Effects in Magnetic Fluids

“…Subsequently, magnetic fluids have received a wide range of applications, such as: magnetic fluid dampers, bearings and seals [4], micromechanical systems [5], non-destructive testing devices [6], microfluidics devices [7], biosensors for studying cellular toxicity, and systems for treating oncological diseases by the method of hyperthermia [11], etc. Magnetic fluids under the influence of a magnetic field exhibit some different optical effects, such as birefringence [12][13], linear and circular dichroism [14], Faraday rotation and ellipticity [15], changes in the intensity of transmitted, scattered and reflected light [16][17], etc. Due to these effects, magnetic fluids are used in various magneto-optical devices: optical filters, limiters and gates, waveguides and fiber-optic modulators, diffraction gratings with a controlled period, optical sensors of magnetic field, static and dynamic displays, etc.…”