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Laser-Induced Fluorescence Detection of Hot Molecular Oxygen in Flames Using an Alexandrite Laser

In English

Författare

Summary, in English

The use of an alexandrite laser for laser-induced fluorescence (LIF) spectroscopy and imaging of molecular oxygen in thermally excited vibrational states is demonstrated. The laser radiation after the third harmonic generation was used to excite the B-X (0-7) band at 257 nm in the Schumann-Runge system of oxygen. LIF emission was detected between 270 and 380 nm, revealing distinct bands of the transitions from B(0) to highly excited vibrational states in the electronic ground state, X (v > 7). At higher spectral resolution, these bands reveal the common P- and R-branch line splitting. Eventually, the proposed LIF approach was used for single-shot imaging of the two-dimensional distribution of hot oxygen molecules in flames.

Publiceringsår

2014

Språk

Engelska

Sidor

1266-1273

Publikation/Tidskrift/Serie

Applied Spectroscopy

Volym

68

Issue

11

Dokumenttyp

Artikel i tidskrift

Förlag

Society for Applied Spectroscopy

Ämne

  • Atom and Molecular Physics and Optics

Nyckelord

  • Schumann-Runge
  • Oxygen
  • Ultraviolet
  • Planar laser-induced fluorescence
  • PLIF

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1943-3530