Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Optically multiplexed multi-gas detection using quantum cascade laser photoacoustic spectroscopy

Not Accessible

Your library or personal account may give you access

Abstract

We report high-throughput, nondispersive optical multiplexing of laser beams using a scanning galvanometer. We have utilized this technique for multispecies trace-gas detection using multiple quantum cascade laser photoacoustic spectroscopy. We demonstrate switching from one laser to another in less than 1 s, a performance level needed for a comprehensive multispecies sensor, and a high signal-to-noise ratio detection of five gaseous components, NH3, NO2, dimethyl methyl phosphonate (DMMP, a simulant for nerve agents), acetone, and ethylene glycol, in a room air gas mixture containing 3ppb of NH3, 8ppb of NO2, 20ppb of DMMP, 30ppb of acetone, and 40ppb of ethylene glycol.

© 2008 Optical Society of America

Full Article  |  PDF Article
More Like This
Sub-parts-per-billion level detection of dimethyl methyl phosphonate (DMMP) by quantum cascade laser photoacoustic spectroscopy

Anadi Mukherjee, Ilya Dunayevskiy, Manu Prasanna, Rowel Go, Alexei Tsekoun, Xiaojun Wang, Jenyu Fan, and C. Kumar N. Patel
Appl. Opt. 47(10) 1543-1548 (2008)

Ammonia detection by using quantum-cascade laser photoacoustic spectroscopy

Milton B. Filho, Marcelo G. da Silva, Marcelo S. Sthel, Delson U. Schramm, Helion Vargas, Andras Miklós, and Peter Hess
Appl. Opt. 45(20) 4966-4971 (2006)

Quantum cascade laser linewidth investigations for high resolution photoacoustic spectroscopy

Markus Germer and Marcus Wolff
Appl. Opt. 48(4) B80-B86 (2009)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved