Dependence of laser radiation intensity on the elastic deformation of a revolving optical disk with a reflective coating

摘要

The physical mechanism of alteration of intensity of linearly polarized monochromatic electromagnetic radiation with lambda = 630 nm in a revolving dielectric disk with a mirror coating is examined. The effect is induced by elastic deformation due to the revolution and by thermoelastic deformation of the optically transparent disk. These deformations result in birefringence, the polarization plane rotation, and a 30-40% change in the intensity of reflected radiation.