External cavity quantum cascade laser for quartz tuning fork photoacoustic spectroscopy of broad absorption features

Mark C. Phillips, Tanya L. Myers, Michael D. Wojcik, Bret D. Cannon

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

We demonstrate mid-infrared spectroscopy of large molecules with broad absorption features using a tunable external cavity quantum cascade laser. Absorption spectra for two different Freons are measured over the range 1130–1185 cm-1 with 0.2 cm-1 resolution via laser photoacoustic spectroscopy with quartz tuning forks as acoustic transducers. The measured spectra are in excellent agreement with published reference absorption spectra.

Original languageEnglish (US)
Pages (from-to)1177-1179
Number of pages3
JournalOptics letters
Volume32
Issue number9
DOIs
StatePublished - May 1 2007
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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