Simultaneous detection of multiple-gas species by correlation spectroscopy using a multimode diode laser

X. T. Lou, Gabriel Somesfalean, B. Chen, Y. G. Zhang, H. S. Wang, Z. G. Zhang, S. H. Wu, Y. K. Qin

Research output: Contribution to journalArticlepeer-review

Abstract

Simultaneous detection of multiple-gas species has for the first time (to our knowledge) been demonstrated by using a multimode diode-laser-based correlation spectroscopy (MDL-COSPEC) scheme. Concentration measurements of a mixture of CO2 and CO gas were performed by probing overlapping line spectra around 1.57 mu m using an MDL. Species identification and corresponding quantitive analysis were implemented by correlating the recorded absorption signals of the sample gas mixtures with those of the reference gases of particular interest, attaining accuracies of 2% and 1%, respectively. MDL-COSPEC is a generic technique with potential application for simultaneous detection of multiple gases having resolvable narrow lines. (C) 2010 Optical Society of America
Original languageEnglish
Pages (from-to)1749-1751
JournalOptics Letters
Volume35
Issue number11
DOIs
Publication statusPublished - 2010

Subject classification (UKÄ)

  • Atom and Molecular Physics and Optics

Fingerprint

Dive into the research topics of 'Simultaneous detection of multiple-gas species by correlation spectroscopy using a multimode diode laser'. Together they form a unique fingerprint.

Cite this