Electromagnetic Lensing Using a Ferrofluid Thin Film

Abstract

In this report, I show by experiment how a Ferrofluid thin-film contained between two flat glass disks, referred to here as a “Ferrocell”, will create a circular disk pattern on a target using laser and a parallel, homogeneous electromagnetic field from a Helmholtz coil with a strong correlation to the circular disk pattern produced by a glass Plano- concave lens. Furthermore, I show how this circular pattern will increase or decrease in diameter, depending on the location of the Ferrocell between a laser source and a arget while induced within an electromagnetic field.