Certain results of the interaction of laser light with various media

Antoni Drobnik

doi:10.1117/12.57166

Abstract

The work presents the results of the investigations of the interaction of pulsed laser light with matter. The effects of this interaction that is the changes of dielectric constant and refractive index lead in turn to the phenomenon of self focusing of light. Light pulses in the irradiated materials can generate mechanical vibrations what makes the material inhomogeneous and increases the scattering process. Self focusing of light can be applied for the modulation of the action of pulsed lasers. The losses for caused by the mechanical vibration in optical fibers can be determined as a ratio of scattered energy flux (Sr ) and the energy flux of the fundamental mode (So). The interaction of powerful beams of laser light with various media can result in the changes of their physical properties. Laser beams with suitable temporal and spatial characteristics generate mechanical vibrations in the irradiated media 1 . . The investigations on the dynamics of the phenomena accompanying the interaction of strong optical pulses with irradiated materials made it generally possible to find out the causes of the generation of mechanical vibrations during such interactions 1 2 6 7 Absorbing materials when subjected to the action of laser light quickly get hot and deformed and afterwards the generation of series of mechanical pulses into and out of the sample can occur. As a result of the impact of laser pulses onto

Citation Download Citation

Antoni Drobnik, Antoni Drobnik, } "Certain results of the interaction of laser light with various media", Proc. SPIE 1391, Laser Technology III, (1 August 1991); doi: 10.1117/12.57166; https://doi.org/10.1117/12.57166

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