Interrelation between striction forces in dielectrics and optically induced forces in transparent media

Abstract

Optically induced forces applied to a transparent optical medium, which is inserted in a closed plane optical resonator, are calculated by means of an analysis of the changes in the eigenfrequency and energy stored in the resonator at various positions of the medium. These forces are compared with striction forces applied to the medium considered as a dielectric placed in an alternate electrical field within the resonator. It is shown that the optically induced forces are equal to the striction forces. The results of using the classical formula for striction forces in electrostatics are considered.

Interrelation between ball lightning and optically induced forces

“…It was shown that there are only two types of optically induced forces [17] under steady-state conditions. These are density forces arising in an inhomogeneous optical medium where its permittivity is changed in space and the electrostriction pressure which takes place in any medium.…”