Abstract
The phenomenon of electrostriction in gas manifests itself in increasing the refractive index. This results, as in solids and liquids, in self-focusing of the laser beam. It occurs when the gas molecules are induced to move toward an electric field. Consequently, the density of the gas in the location of the electric field increases. The electrostrictive force acts for as long as the electric field is present. Afterward, the elevated density is equilibrated by molecular diffusion. The effect of electrostriction in gases has been predicted in the past.1–3
© 1989 Optical Society of America
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