Magneto-Optical Transmittance Observed in Magnetorheological Suspensions Films.

We manufacture magnetorheological suspensions (MRS) based on silicone oil (SO) and carbonyl iron (CI) particles of different concentrations. The MRS is deposited on a transparent thin film, and light is allowed to pass through the system. We show that in the presence of an external magnetic field of low intensity the light transmission can be controlled for each CI concentration. The observed effect can be used for fabrication of various magnetically controlled optical devices. [ABSTRACT FROM AUTHOR]