OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 20 — Oct. 15, 2006
  • pp: 3040–3042

Doppler-free saturated-absorption spectroscopy of C O 2 at 4.3 μ m by means of a distributed feedback quantum cascade laser

A. Castrillo, E. De Tommasi, L. Gianfrani, L. Sirigu, and J. Faist  »View Author Affiliations


Optics Letters, Vol. 31, Issue 20, pp. 3040-3042 (2006)
http://dx.doi.org/10.1364/OL.31.003040


View Full Text Article

Enhanced HTML    Acrobat PDF (99 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We report the application of a cw distributed feedback quantum cascade laser to Lamb-dip spectroscopy of C O 2 at 4.3 μ m . With the laser operating in the free-running mode, we observed the sub-Doppler profile of the P ( 28 ) line of the ( 0 , 1 1 , 0 ) ( 0 , 1 1 , 1 ) hot band by implementing a pump–probe scheme and using wavelength modulation spectroscopy for highly sensitive detection of saturated absorption signals. We investigated the main limitations to the observation of a narrow resonance, with particular attention to the effect of the laser current noise. We determined the intrinsic laser emission width, which was found to be approximately 3.4 MHz (FWHM) for an observation time of 200 ms .

© 2006 Optical Society of America

OCIS Codes
(140.5960) Lasers and laser optics : Semiconductor lasers
(300.6320) Spectroscopy : Spectroscopy, high-resolution
(300.6460) Spectroscopy : Spectroscopy, saturation

ToC Category:
Spectroscopy

History
Original Manuscript: July 14, 2006
Manuscript Accepted: July 24, 2006
Published: September 25, 2006

Citation
A. Castrillo, E. De Tommasi, L. Gianfrani, L. Sirigu, and J. Faist, "Doppler-free saturated-absorption spectroscopy of CO2 at 4.3 μm by means of a distributed feedback quantum cascade laser," Opt. Lett. 31, 3040-3042 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-20-3040

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  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited