Laser-induced fluorescence excitation spectroscopy of N2 + produced by VUV photoionization of N2 and N2O

Masakazu Mizutani, Hiromichi Niikura, Atsunari Hiraya, Koichiro Mitsuke

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Synchrotron radiation emitted from the UVSOR storage ring is monochromated by a grazing-incidence monochromator and introduced coaxially with the second harmonic of a mode-locked Ti:sapphire laser. Sample gases, N2 and N2O, are photoionized into vibronically ground N2 + with the fundamental light of the undulator radiation at 18.0 and 18.6 eV, respectively. Laser-induced fluorescence (LIF) excitation spectra of N2 + from N2 and N2O are measured in the laser wavelength region of the (B 2u +, v′ = 0) ← (X 2g +, v″ = 0) transition at 389-392 nm. The LIF excitation spectra of N2 + exhibit two maxima due to the P and R branches in which rotational bands are heavily overlapped. The rotational temperature is determined by simulating an LIF excitation spectrum by using the theoretical intensity distribution of rotation bands convoluted with the spectral width of the laser.

Original languageEnglish
Pages (from-to)1069-1071
Number of pages3
JournalJournal of Synchrotron Radiation
Volume5
Issue number3
Publication statusPublished - 1998 May 1
Externally publishedYes

Fingerprint

Photoionization
laser induced fluorescence
photoionization
Fluorescence
Spectroscopy
Lasers
spectroscopy
excitation
lasers
monochromators
grazing incidence
synchrotron radiation
sapphire
harmonics
Wigglers
Monochromators
Storage rings
radiation
Laser modes
Synchrotron radiation

Keywords

  • Laser-induced fluorescence
  • N
  • Pump-probe experiments
  • Rotational distributions
  • Synchrotron radiation-laser combinations

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Instrumentation
  • Atomic and Molecular Physics, and Optics
  • Radiation

Cite this

Laser-induced fluorescence excitation spectroscopy of N2 + produced by VUV photoionization of N2 and N2O. / Mizutani, Masakazu; Niikura, Hiromichi; Hiraya, Atsunari; Mitsuke, Koichiro.

In: Journal of Synchrotron Radiation, Vol. 5, No. 3, 01.05.1998, p. 1069-1071.

Research output: Contribution to journalArticle

Mizutani, Masakazu ; Niikura, Hiromichi ; Hiraya, Atsunari ; Mitsuke, Koichiro. / Laser-induced fluorescence excitation spectroscopy of N2 + produced by VUV photoionization of N2 and N2O. In: Journal of Synchrotron Radiation. 1998 ; Vol. 5, No. 3. pp. 1069-1071.
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AB - Synchrotron radiation emitted from the UVSOR storage ring is monochromated by a grazing-incidence monochromator and introduced coaxially with the second harmonic of a mode-locked Ti:sapphire laser. Sample gases, N2 and N2O, are photoionized into vibronically ground N2 + with the fundamental light of the undulator radiation at 18.0 and 18.6 eV, respectively. Laser-induced fluorescence (LIF) excitation spectra of N2 + from N2 and N2O are measured in the laser wavelength region of the (B 2∑u +, v′ = 0) ← (X 2∑g +, v″ = 0) transition at 389-392 nm. The LIF excitation spectra of N2 + exhibit two maxima due to the P and R branches in which rotational bands are heavily overlapped. The rotational temperature is determined by simulating an LIF excitation spectrum by using the theoretical intensity distribution of rotation bands convoluted with the spectral width of the laser.

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