High resolution Fourier transform infrared spectroscopy using a high temperature argon arc source Academic Article uri icon

abstract

  • Application of a high temperature wall-stabilized argon arc source (HTAAS) for high resolution near- and mid-infrared Fourier transform infrared spectroscopy (FTIR) has been investigated. Spectra of N2O, NH3 and the complex OC-HCl were recorded at maximum apodized instrumental resolution (0.004 cm-1). The signal to noise (S/N) ratio of these molecular absorption transitions were compared with corresponding spectra recorded using a 1520(30) K globar source. At 7.6 m, recorded 14N216O transitions are consistent with a HTAAS at approximately 10,000 K and an enhancement of 12.6 in recorded S/N ratios with respect to the latter globar source. Such results demonstrate a significantly enhanced performance for specific FTIR applications such as high resolution static gas phase spectroscopy and molecular spectroscopy in supersonic jet expansions, and potentially for infrared microscopy. 2001 Published by Elsevier Science B.V.

published proceedings

  • INFRARED PHYSICS & TECHNOLOGY

altmetric score

  • 3

author list (cited authors)

  • McIntosh, A. L., Wofford, B. A., Lucchese, R. R., & Bevan, J. W.

citation count

  • 3

complete list of authors

  • McIntosh, AL||Wofford, BA||Lucchese, RR||Bevan, JW

publication date

  • December 2001