Measurement and Analysis of C₂ Swan Spectra Following Breakdown of Nitro Compound Simulants

M. Witte; C. G. Parigger; N. A. Bullock; J. A. Merten; S. D. Allen

Measurement and Analysis of C₂ Swan Spectra Following Breakdown of Nitro Compound Simulants

M. Witte, C. G. Parigger, N. A. Bullock, J. A. Merten, S. D. Allen

Research output: Contribution to conference › Presentation

Abstract

Recent measurements of micro-plasma following laser-induced optical breakdown on 3-nitrobenzoic acid show well developed molecular spectra during the first several hundreds of nanoseconds. Analysis of Carbon Swan spectra for well-above breakdown threshold energy/pulse is accomplished using an accurate line strength file. Moreover, presence of hydrogen-beta allows us to infer electron density in the plasma evolution. Computational challenges include accounting for background variation and appropriate modeling of hydrogen embedded in molecular spectra. Recorded and computed spectra agree nicely for time delays on the order of 1600 ns from optical breakdown when using a single temperature for local thermodynamic equilibrium plasma.

Original language	American English
State	Published - Nov 16 2012
Externally published	Yes
Event	79th Annual Meeting of the American Physical Society Southeastern Section - Tallahassee, FL Duration: Nov 16 2012 → …

Conference

Conference	79th Annual Meeting of the American Physical Society Southeastern Section
Period	11/16/12 → …

Keywords

laser-induced optical breakdown
swan spectra

Disciplines

Physical Sciences and Mathematics
Atomic, Molecular and Optical Physics

Cite this

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title = "Measurement and Analysis of C₂ Swan Spectra Following Breakdown of Nitro Compound Simulants",

abstract = " Recent measurements of micro-plasma following laser-induced optical breakdown on 3-nitrobenzoic acid show well developed molecular spectra during the first several hundreds of nanoseconds. Analysis of Carbon Swan spectra for well-above breakdown threshold energy/pulse is accomplished using an accurate line strength file. Moreover, presence of hydrogen-beta allows us to infer electron density in the plasma evolution. Computational challenges include accounting for background variation and appropriate modeling of hydrogen embedded in molecular spectra. Recorded and computed spectra agree nicely for time delays on the order of 1600 ns from optical breakdown when using a single temperature for local thermodynamic equilibrium plasma.",

keywords = "laser-induced optical breakdown, swan spectra",

author = "M. Witte and Parigger, {C. G.} and Bullock, {N. A.} and Merten, {J. A.} and Allen, {S. D.}",

note = "Recent measurements of micro-plasma following laser-induced optical breakdown on 3-nitrobenzoic acid show well developed molecular spectra during the first several hundreds of nanoseconds. Analysis of Carbon Swan spectra for well-above breakdown threshold energy/pulse is accomplished using an accurate line strength file. Moreover, presence of hydrogen-beta allows us to infer electron density in the plasma evolution.; 79th Annual Meeting of the American Physical Society Southeastern Section ; Conference date: 16-11-2012",

year = "2012",

month = nov,

day = "16",

language = "American English",

}

TY - CONF

T1 - Measurement and Analysis of C₂ Swan Spectra Following Breakdown of Nitro Compound Simulants

AU - Witte, M.

AU - Parigger, C. G.

AU - Bullock, N. A.

AU - Merten, J. A.

AU - Allen, S. D.

N1 - Recent measurements of micro-plasma following laser-induced optical breakdown on 3-nitrobenzoic acid show well developed molecular spectra during the first several hundreds of nanoseconds. Analysis of Carbon Swan spectra for well-above breakdown threshold energy/pulse is accomplished using an accurate line strength file. Moreover, presence of hydrogen-beta allows us to infer electron density in the plasma evolution.

PY - 2012/11/16

Y1 - 2012/11/16

N2 - Recent measurements of micro-plasma following laser-induced optical breakdown on 3-nitrobenzoic acid show well developed molecular spectra during the first several hundreds of nanoseconds. Analysis of Carbon Swan spectra for well-above breakdown threshold energy/pulse is accomplished using an accurate line strength file. Moreover, presence of hydrogen-beta allows us to infer electron density in the plasma evolution. Computational challenges include accounting for background variation and appropriate modeling of hydrogen embedded in molecular spectra. Recorded and computed spectra agree nicely for time delays on the order of 1600 ns from optical breakdown when using a single temperature for local thermodynamic equilibrium plasma.

AB - Recent measurements of micro-plasma following laser-induced optical breakdown on 3-nitrobenzoic acid show well developed molecular spectra during the first several hundreds of nanoseconds. Analysis of Carbon Swan spectra for well-above breakdown threshold energy/pulse is accomplished using an accurate line strength file. Moreover, presence of hydrogen-beta allows us to infer electron density in the plasma evolution. Computational challenges include accounting for background variation and appropriate modeling of hydrogen embedded in molecular spectra. Recorded and computed spectra agree nicely for time delays on the order of 1600 ns from optical breakdown when using a single temperature for local thermodynamic equilibrium plasma.

KW - laser-induced optical breakdown

KW - swan spectra

UR - http://meetings.aps.org/Meeting/SES12/Session/KA.40

M3 - Presentation

T2 - 79th Annual Meeting of the American Physical Society Southeastern Section

Y2 - 16 November 2012

ER -

Measurement and Analysis of C₂ Swan Spectra Following Breakdown of Nitro Compound Simulants

Abstract

Conference

Keywords

Disciplines

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Cite this