Measurements of the indium hyperfine structure in an atmospheric-pressure flame by use of diode-laser-induced fluorescence

J. Hult, I.S. Burns, C.F. Kaminski

Research output: Contribution to journalArticle

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Abstract

We report on what we believe is the first demonstration of laser-induced fluorescence (LIF) in flames by use of diode lasers. Indium atoms seeded into an atmospheric-pressure flame at trace concentrations are excited by a blue GaN laser operating near 410 nm. The laser is mounted in an external-cavity configuration, and the hyperfine spectrum of the 5(2)P(1/2) → 6(2)S(1/2) transition is captured at high resolution in single-wavelength sweeps lasting less than one tenth of a second. The research demonstrates the potential of diode-based LIF for practical diagnostics of high-temperature reactive flows.
Original languageEnglish
Pages (from-to)827-829
Number of pages3
JournalOptics Letters
Volume29
Issue number8
DOIs
Publication statusPublished - 15 Apr 2004

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hyperfine structure
laser induced fluorescence
indium
flames
atmospheric pressure
diodes
lasers
semiconductor lasers
cavities
high resolution
configurations
wavelengths
atoms

Keywords

  • indium hyperfine
  • atmospheric-pressure
  • diode-laser-induced
  • fluorescence

Cite this

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abstract = "We report on what we believe is the first demonstration of laser-induced fluorescence (LIF) in flames by use of diode lasers. Indium atoms seeded into an atmospheric-pressure flame at trace concentrations are excited by a blue GaN laser operating near 410 nm. The laser is mounted in an external-cavity configuration, and the hyperfine spectrum of the 5(2)P(1/2) → 6(2)S(1/2) transition is captured at high resolution in single-wavelength sweeps lasting less than one tenth of a second. The research demonstrates the potential of diode-based LIF for practical diagnostics of high-temperature reactive flows.",
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Measurements of the indium hyperfine structure in an atmospheric-pressure flame by use of diode-laser-induced fluorescence. / Hult, J.; Burns, I.S.; Kaminski, C.F.

In: Optics Letters, Vol. 29, No. 8, 15.04.2004, p. 827-829.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Measurements of the indium hyperfine structure in an atmospheric-pressure flame by use of diode-laser-induced fluorescence

AU - Hult, J.

AU - Burns, I.S.

AU - Kaminski, C.F.

PY - 2004/4/15

Y1 - 2004/4/15

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AB - We report on what we believe is the first demonstration of laser-induced fluorescence (LIF) in flames by use of diode lasers. Indium atoms seeded into an atmospheric-pressure flame at trace concentrations are excited by a blue GaN laser operating near 410 nm. The laser is mounted in an external-cavity configuration, and the hyperfine spectrum of the 5(2)P(1/2) → 6(2)S(1/2) transition is captured at high resolution in single-wavelength sweeps lasting less than one tenth of a second. The research demonstrates the potential of diode-based LIF for practical diagnostics of high-temperature reactive flows.

KW - indium hyperfine

KW - atmospheric-pressure

KW - diode-laser-induced

KW - fluorescence

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