Abstract

There are papers where auto oscillations during the concentrated energy fluxes action were described. These oscillations are caused by scattering and absorption of the incident laser radiation by the destroy products of material and arise under the influence on metals of cw CO₂. laser radiation with the intensity of 10⁹-10¹⁰ W m^-2 [1,2]. This paper deals with a new type of auto oscillations that arise during the interaction of a cw laser radiation with an absorbing liquid and do not connect with the transformation of the incident laser beam by the material destruction products Probably, these oscillations were discovered when the arc (Gas Tungsten Arc) augmented laser action on metals of the cw CO₂ laser radiation intensity of 5 10⁹≤q≤10¹⁰ [3,4] was investigated. The aim of the paper is the experimental investigation of the auto oscillations for a number of liquids and modeling of the process.

© 1996 IEEE