• Angular momentum of light and its mechanical effects on a birefringent medium

      Marathay, A. S.; Padmabandu, Gamaralalage Gunasiri, 1956- (The University of Arizona., 1988)
      The torque exerted by a beam of polarized light on a half-wave plate which alters its state of polarization is calculated for several laser wavelengths and intensities using electromagnetic theory. The second-order torque that arises through the nonlinear interaction is formulated and the numerical values are calculated for the 42m crystal class. The experiment used to detect the existence of the torque is reviewed and a demonstration experiment is suggested.