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

Journal Article · Wed Oct 15 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4898290· OSTI ID:22308035

N, Smijesh ^[1]; K, Chandrasekharan ^[2]; Philip, Reji ^[3]

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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)

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.

• OSTI ID: 22308035
• Journal Information: AIP Conference Proceedings, Vol. 1620, 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); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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