DOI: 10.1063/1.365482. Emission characteristics and dynamics of C2 from laser produced graphite plasma

Emission characteristics and dynamics of C2 from laser produced graphite plasma

10.1063/1.365482

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

The emission features of laser ablated graphite plume generated in a helium ambient atmosphere have been investigated with time and space resolved plasma diagnostic technique. Time resolved optical emission spectroscopy is employed to reveal the velocity distribution of different species ejected during ablation. At lower values of laser fluences only a slowly propagating component of C2 is seen. At high fluences emission from C2 shows a twin peak distribution in time. The formation of an emission peak with diminished time delay giving an energetic peak at higher laser fluences is attributed to many body recombination. It is also observed that these double peaks get modified into triple peak time of flight distribution at distances greater than 16 mm from the target. The occurrence of multiple peaks in the C2 emission is mainly due to the delays caused from the different formation mechanism of C2 species. The velocity distribution of the faster peak exhibits an oscillating character with distance from the target surface.

Bibliography

Harilal, S. S., Issac, R. C., Bindhu, C. V., Nampoori, V. P. N., & Vallabhan, C. P. G. (1997). Emission characteristics and dynamics of C2 from laser produced graphite plasma. Journal of Applied Physics, 81(8), 3637â3643.

Authors 5

S. S. Harilal (first)
Riju C. Issac (additional)
C. V. Bindhu (additional)
V. P. N. Nampoori (additional)
C. P. G. Vallabhan (additional)

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Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 9:52 a.m.)
Deposited	1 year, 6 months ago (Feb. 2, 2024, 2:37 p.m.)
Indexed	4 weeks ago (Aug. 2, 2025, 12:19 a.m.)
Issued	28 years, 4 months ago (April 15, 1997)
Published	28 years, 4 months ago (April 15, 1997)
Published Print	28 years, 4 months ago (April 15, 1997)

Funders 0

None

BibTeX

@article{Harilal_1997, title={Emission characteristics and dynamics of C2 from laser produced graphite plasma}, volume={81}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.365482}, DOI={10.1063/1.365482}, number={8}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Harilal, S. S. and Issac, Riju C. and Bindhu, C. V. and Nampoori, V. P. N. and Vallabhan, C. P. G.}, year={1997}, month=apr, pages={3637–3643} }

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