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Title: Study of a colliding laser-produced plasma by analysis of time- and space-resolved image spectra

Abstract

The interaction of two counterpropagating laser-produced plasmas was studied using simultaneous imaging and spectroscopic techniques. Spectrally filtered time-gated intensified charge coupled device imaging was used to obtain information about the spatial dynamics and temporal evolution of the collision process, while time-resolved imaging spectroscopy was used to determine the spatial and temporal distributions of electron temperature and density within the interaction region. We examine specifically the interaction of plasmas whose parameters match those typically used in pulsed laser deposition of thin films. These low temperature plasmas are highly collisional leading to the creation of a pronounced stagnation layer in the interaction region.

Authors:
; ;  [1];  [2]
  1. NCPST, Dublin City University, Glasnevin, Dublin 9 (Ireland)
  2. (Ireland)
Publication Date:
OSTI Identifier:
20982663
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 101; Journal Issue: 3; Other Information: DOI: 10.1063/1.2431685; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CHARGE-COUPLED DEVICES; ELECTRON TEMPERATURE; ENERGY BEAM DEPOSITION; EVOLUTION; IMAGES; ION TEMPERATURE; LASER RADIATION; LASER-PRODUCED PLASMA; PLASMA DENSITY; PLASMA DIAGNOSTICS; PLASMA PRODUCTION; PULSED IRRADIATION; SPECTROSCOPY; THIN FILMS; TIME RESOLUTION

Citation Formats

Luna, H., Kavanagh, K. D., Costello, J. T., and School of Physical Science, Dublin City University, Glasnevin, Dublin 9. Study of a colliding laser-produced plasma by analysis of time- and space-resolved image spectra. United States: N. p., 2007. Web. doi:10.1063/1.2431685.
Luna, H., Kavanagh, K. D., Costello, J. T., & School of Physical Science, Dublin City University, Glasnevin, Dublin 9. Study of a colliding laser-produced plasma by analysis of time- and space-resolved image spectra. United States. doi:10.1063/1.2431685.
Luna, H., Kavanagh, K. D., Costello, J. T., and School of Physical Science, Dublin City University, Glasnevin, Dublin 9. Thu . "Study of a colliding laser-produced plasma by analysis of time- and space-resolved image spectra". United States. doi:10.1063/1.2431685.
@article{osti_20982663,
title = {Study of a colliding laser-produced plasma by analysis of time- and space-resolved image spectra},
author = {Luna, H. and Kavanagh, K. D. and Costello, J. T. and School of Physical Science, Dublin City University, Glasnevin, Dublin 9},
abstractNote = {The interaction of two counterpropagating laser-produced plasmas was studied using simultaneous imaging and spectroscopic techniques. Spectrally filtered time-gated intensified charge coupled device imaging was used to obtain information about the spatial dynamics and temporal evolution of the collision process, while time-resolved imaging spectroscopy was used to determine the spatial and temporal distributions of electron temperature and density within the interaction region. We examine specifically the interaction of plasmas whose parameters match those typically used in pulsed laser deposition of thin films. These low temperature plasmas are highly collisional leading to the creation of a pronounced stagnation layer in the interaction region.},
doi = {10.1063/1.2431685},
journal = {Journal of Applied Physics},
number = 3,
volume = 101,
place = {United States},
year = {Thu Feb 01 00:00:00 EST 2007},
month = {Thu Feb 01 00:00:00 EST 2007}
}
  • We produced a plasma using highly focused {approx}50 mJ, 10 ps pulses from a KrF laser on graphite and boron-carbide targets. We measured space-resolved (along the plasma axis) line profiles of Hydrogen-like and Helium-like Carbon and Boron resonance lines, using a crossed-slit, 1 m grazing-incidence spectrometer, with a spatial resolution {approx}50 {mu}m. Synthetic spectra generated with the atomic postprocessor CRETIN provided preliminary estimates of the plasma electron temperature and density. {copyright} {ital 1999 American Institute of Physics.}
  • We produced a plasma using highly focused {approx_equal}50 mJ, 10 ps pulses from a KrF laser on graphite and boron-carbide targets. We measured space-resolved (along the plasma axis) line profiles of Hydrogen-like and Helium-like Carbon and Boron resonance lines, using a crossed-slit, 1 m grazing-incidence spectrometer, with a spatial resolution {approx_equal}50 {mu}m. Synthetic spectra generated with the atomic postprocessor CRETIN provided preliminary estimates of the plasma electron temperature and density.
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