This article is cited in 2 papers

Interaction of radiation with matter

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

O. F. Kostenko

Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow

Abstract: We have developed a model for the generation of K_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_α emission with decreasing wavelength from 1.24 to 0.4 μm, which is observed at an intensity of 2 × 10¹⁷ W·cm^-2.

Keywords: vacuum heating of electrons, clusters, generation of K_б radiation.

PACS: 52.38.Ph, 52.38.Kd, 52.50.Jm, 42.65.Re, 36.40.Wa

Received: 03.03.2014

 English version: Quantum Electronics, 2014, 44:5, 478–483

Bibliographic databases:

• 
• 
•