LASER GENERATION OF A CONIC SHOCK-WAVE IN PLEXIGLAS

This paper is devoted to studying the dynamics and finding the parameters of matter behind the front of a shock wave initiated by the action of the radiation of a gigawatt CO2 laser on a hollow conic target in a solid plexiglas cube. The use of pulse holographic interferometry and digital methods for the processing of reconstructed interferograms of relatively low quality made it possible to reliably determine the variation of the refractive index of a transparent dielectric in the entire region under the action of a conic shock wave within congruent-to 2 mus after the beginning of propagation of the shock wave.