Conducting needles in a dielectric as radar and infrared reflectors

It has become of recent interest to complement electromagnetic responses in intensity by the additional consideration of their polarizations. In order to affect the latter, media have been considered that contain inclusions o f randomly distributed and oriented short, thin wires (needles), whose pola rized scattering amplitudes can modify the well-known polarization of surfa ce reflections that is governed simply by the so-called Fresnel coefficient s. In the present study, we analytically obtain, for the case of a multipli city of perfectly conducting wires imbedded in a dielectric, the correspond ing wave scattering amplitudes and their superposition with the specularly surface-reflected wave amplitude when both are being generated by the same incident wave. This allows a calculation of the total returned-wave polariz ations which we express by the real Stokes parameters.