OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 12 — Apr. 20, 2000
  • pp: 2009–2016

Multiplexed continuous-wave diode-laser cavity ringdown measurements of multiple species

Gerhard Totschnig, Douglas S. Baer, Jian Wang, Franz Winter, Hermann Hofbauer, and Ronald K. Hanson  »View Author Affiliations


Applied Optics, Vol. 39, Issue 12, pp. 2009-2016 (2000)
http://dx.doi.org/10.1364/AO.39.002009


View Full Text Article

Enhanced HTML    Acrobat PDF (153 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Rapid cavity ringdown measurements of multiple broadband absorbing species (methanol and isopropanol) in gas mixtures have been recorded with two multiplexed continuous-wave distributed-feedback diode lasers operating near 1.4 µm. A measurement sensitivity of 2.4 × 10-9 cm-1 for a 4.3-s averaging time was achieved in a 39.5-cm-long static cell with 99.94% reflectivity mirrors. This corresponds to a water-vapor detection limit of less than 2 ppb (parts in 109) for the strong H2O lines near 1.4 µm. The shot-to-shot noise of the decay time constant τ was approximately 0.3–0.7%, and ringdown acquisition rates as great as 900 Hz were achieved.

© 2000 Optical Society of America

OCIS Codes
(280.3420) Remote sensing and sensors : Laser sensors
(300.1030) Spectroscopy : Absorption
(300.6260) Spectroscopy : Spectroscopy, diode lasers

History
Original Manuscript: August 12, 1999
Revised Manuscript: January 6, 2000
Published: April 20, 2000

Citation
Gerhard Totschnig, Douglas S. Baer, Jian Wang, Franz Winter, Hermann Hofbauer, and Ronald K. Hanson, "Multiplexed continuous-wave diode-laser cavity ringdown measurements of multiple species," Appl. Opt. 39, 2009-2016 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-12-2009

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

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

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

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

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article

OSA is a member of CrossRef.

CrossCheck Deposited