Multi-pass cell-assisted photoacoustic/photothermal spectroscopy of gases using quantum cascade laser excitation and heterodyne interferometric signal detection

Karol Krzempek, Arkadiusz Hudzikowski, Aleksander Głuszek, Grzegorz Dudzik, Krzysztof Abramski, Gerard Wysocki, Michał Nikodem

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

A heterodyne interferometer-based signal retrieval in photoacoustic/photothermal gas spectrometer using mid-infrared quantum cascade laser excitation is demonstrated. This new method for all-optical photoacoustic/photothermal signal detection allows for sensitivity enhancement using standard multi-pass cells, commonly used in absorption-based spectrometers. Two types of multi-pass cell are examined: a Herriott type with up to 33 passes and a White type with up to 46 passes. Good agreement between experimental results and numerical analysis is obtained.

Original languageEnglish (US)
Article number74
JournalApplied Physics B: Lasers and Optics
Volume124
Issue number5
DOIs
StatePublished - May 1 2018

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Multi-pass cell-assisted photoacoustic/photothermal spectroscopy of gases using quantum cascade laser excitation and heterodyne interferometric signal detection'. Together they form a unique fingerprint.

Cite this