skip to main content

Title: Influence of the main pulse and prepulse intensity on high-order harmonic generation in silver plasma ablation

We present experimental studies of high-order harmonic generation in silver plasma ablation performed with the Ti:sapphire laser beams of the Advanced Laser Light Source (800 nm wavelength, 360 mJ total energy). We have independently varied the intensity of the prepulse (which creates the plasma ablation) and the intensity of the main pulse (which generates the harmonics), and studied their influence on the harmonic spectrum. We show here that the presence of doubly ionized atoms in the ablation, created either by a strong prepulse intensity or with the irradiation of the main pulse, is ineffective for the generation of harmonics.
Authors:
; ;  [1] ;  [2] ; ;  [3]
  1. Institut National de la Recherche Scientifique, Energie, Materiaux et Telecommunications, 1650 Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada)
  2. Scientific Association Akadempribor, Academy of Sciences of Uzbekistan, Akademgorodok, Tashkent 700125 (Uzbekistan)
  3. The Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan)
Publication Date:
OSTI Identifier:
20982395
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevA.75.033804; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ABLATION; ATOMS; BEAMS; HARMONIC GENERATION; HARMONICS; IRRADIATION; LASER RADIATION; LIGHT SOURCES; LIGHT TRANSMISSION; PLASMA; PLASMA PRODUCTION; PULSES; SILVER; SPECTRA; WAVELENGTHS