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Title: Plasma formation on a metal surface under combined action of laser and microwave radiation

By means of numerical modelling of the combined effect of laser (1.06 mm) and microwave (10{sup 10} – 10{sup 13} s{sup -1}) radiation on the aluminium surface in vacuum it is shown that the additional action of microwave radiation with the frequency 10{sup 12} s{sup -1} provides complete ionisation of the metal vapour (for the values of laser radiation duration and intensity used in the calculations), while in the absence of microwave radiation the vapour remains weakly ionised. The mathematical model used accounts for the processes, occurring in the condensed phase (heat conduction, melting), the evaporation and the kinetic processes in the resulting vapour. (interaction of laser radiation with matter. laser plasma)
Authors:
;  [1]
  1. Institute of Computational Modelling of Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk (Russian Federation)
Publication Date:
OSTI Identifier:
22370649
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 43; Journal Issue: 10; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ALUMINIUM; LASER RADIATION; LASERS; MATHEMATICAL MODELS; MELTING; MICROWAVE RADIATION; PLASMA; SURFACES; THERMAL CONDUCTION; VAPORS