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Title: Simulation of the generation of the characteristic X-ray emission under vacuum heating of cluster electrons by a femtosecond laser pulse

We have developed a model for the generation of K{sub α} radiation and the formation of hot electrons under vacuum heating by a femtosecond laser pulse near the surface of spherical clusters. The simulation results correspond to measurements at a cluster diameter of less than or of the order of the wavelength for the cases of p-polarised laser radiation and radiation incident along the normal to the surface. We discuss a significant decrease in the conversion of the laser energy into the energy of K{sub α} emission with decreasing wavelength from 1.24 to 0.4 μm, which is observed at an intensity of 2 × 10{sup 17} W cm{sup -2}. (interaction of radiation with matter)
Authors:
 [1]
  1. Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
22375919
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 44; Journal Issue: 5; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ELECTRON EMISSION; ELECTRONS; HEATING; LASER RADIATION; LASERS; PULSES; SIMULATION; SPHERICAL CONFIGURATION; SURFACES; X RADIATION