Autodyne effect in the presence of laser-induced hydrodynamic flows and its use in identification of the type of biotissue in the course of its destruction

Interaction of high-intensity laser radiation with matter was found to be accompanied by a self-induced modification of the spectrum because of the scattering of the radiation out of the mass-transfer zone back into the laser cavity. This autodyne effect proved to be useful in diagnostics during laser processing of materials, particularly in identification of the type of biotissue in the course of its destruction.