Determining the most suitable spectral range for TDLS – a quantitative approach

Marc-Simon Bahr*, Bernd Baumann, Marcus Wolff

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)
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We present a mathematical method which allows determination of an optimal spectral range for gas mixture analysis based on theoretical absorption spectra. The resulting center wavelength is particularly suited for tunable diode laser spectroscopy (TDLS). The procedure contains several steps of numerical calculations which can easily be implemented in almost any programming language. We apply our method to three exemplary mixtures of hydrocarbons and present and validate the individual results.

Original languageEnglish
Article number108216
Number of pages6
JournalJournal of Quantitative Spectroscopy and Radiative Transfer
Early online date14 Apr 2022
Publication statusPublished - 31 Aug 2022


  • spectroscopy
  • gas analysis
  • detection sensitivity
  • selectivity
  • specificity
  • semiconductor laser
  • tunable diode laser


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