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Analyse des Phänomens der Selbstfokussierung und des Temperaturanstiegs in lichtabsorbierenden Medien durch Ultrakurzpuls‐Laserbestrahlung
Author(s) -
Ohmura E.
Publication year - 2013
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201300152
Subject(s) - irradiation , attenuation coefficient , laser , self focusing , optics , absorption (acoustics) , fourier transform , atomic physics , materials science , physics , analytical chemistry (journal) , chemistry , laser beams , quantum mechanics , nuclear physics , chromatography
Abstract In this study, a paraxial wave equation including light absorption term was solved by numerical calculation using the fast Fourier transform for irradiation of a Kerr medium irradiated by an ultrashort pulse laser. Using the absorbed energy distribution as the initial condition, heat transfer analysis in the material was conducted. The influences of the nonlinear index intensity coefficient and the absorption coefficient on the temperature distribution in the material were investigated.