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Title:
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Fine structure in the time of flight distribution of C2 in laser produced plasma from graphite |
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Author:
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Harilal, S S; Issac, Riju C; Bindhu, C V; Nampoori, V P N; Vallabhan, C P G
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Abstract:
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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 |
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URI:
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http://dyuthi.cusat.ac.in/purl/2454
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Date:
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1997-09 |