Fine structure in the time of flight distribution of C2 in laser produced plasma from graphite

Time resolved optical emission spectroscopy is employed to study the expansion dynamics of C2 species in a graphite plasma produced during the Nd : YAG ablation. At low laser fluences a single peak distribution with low kinetic energy is observed. At higher fluences a twin peak distribution is found...

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Veröffentlicht in:	Pramāṇa 1997, Vol.49 (3), p.317-322
Hauptverfasser:	Harilal, S S, Issac, Riju C, Bindhu, C V, Nampoori, V P N, Vallabhan, C P G
Format:	Artikel
Sprache:	eng
Schlagworte:	Emission analysis Energy distribution Fine structure Graphite Kinetic energy Laser ablation Optical emission spectroscopy YAG lasers
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description	Time resolved optical emission spectroscopy is employed to study the expansion dynamics of C2 species in a graphite plasma produced during the Nd : YAG ablation. At low laser fluences a single peak distribution with low kinetic energy is observed. At higher fluences a twin peak distribution is found. It has been noted that these double peak time of flight distribution splits into a triple peak structure at distances ≥17mm from the target surface. The reason for the occurrence of multiple peak is due to different formation mechanisms of C2 species.
doi_str_mv	10.1007/BF02875208
format	Article
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source	Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Indian Academy of Sciences; SpringerLink Journals - AutoHoldings
subjects	Emission analysis Energy distribution Fine structure Graphite Kinetic energy Laser ablation Optical emission spectroscopy YAG lasers
title	Fine structure in the time of flight distribution of C2 in laser produced plasma from graphite
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