skip to main content

Title: Time-resolved spectroscopy of CI and CII line emissions from an ultrafast laser induced solid graphite plasma

We present an experimental characterization of the evolution dynamics of CI and CII lines in an ultrafast laser produced graphite plasma under various ambient conditions. Fast and slow components are observed in the temporal evolution of CI transition at 658.7 nm (3p{sup 1}P - 4d{sup 1}P{sup 0}) and CII transition at 426.7 nm (3d {sup 2}D - 4f {sup 2}F{sup 0}). Fast peak is due to the recombination of fast ions species with electrons, found to have an increase in velocity upon increasing the ambient pressure. Whereas the slow peaks in both cases can be the results of slow ions or slow neutrals in the plume.
Authors:
 [1] ;  [2] ;  [3]
  1. Lasers and Nonlinear optics lab, Department of Physics, National Institute of Technology Calicut, Kozhikode - 673 601 India and Raman Research Institute, Sadashivanagar, Bangalore 560080 (India)
  2. Lasers and Nonlinear optics lab, Department of Physics, National Institute of Technology Calicut, Kozhikode - 673 601 (India)
  3. Raman Research Institute, Sadashivanagar, Bangalore 560080 (India)
Publication Date:
OSTI Identifier:
22308035
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1620; Journal Issue: 1; Conference: Optics 14: International conference on optics: Light and its interactions with matter, Calicut, Kerala (India), 19-21 Mar 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CARBON IONS; ELECTRONS; EMISSION SPECTRA; EMISSION SPECTROSCOPY; ENERGY-LEVEL TRANSITIONS; GRAPHITE; LASER-PRODUCED PLASMA; RECOMBINATION; SOLID-STATE PLASMA; TIME RESOLUTION; VELOCITY