Effect of electroacoustic wave on the electromagnetic scattering from plasma-coated objects

An experimental investigation has been conducted to study the electromagnetic scattering from plasma-coated scatterers which include metallic and dielectric objects. The coupling between the electromagnetic (EM) wave and the electroacoustic (EA) wave in an inhomogeneous hot plasma is studied. The effect of the EA wave on the radar cross section of a plasma-coated object is observed. The possibility of controlling the radar cross section of a plasma-coated object by biasing the object with respect to the surrounding plasma is also studied.