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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 9 — May. 1, 2010
  • pp: 1383–1385

Phase-shift cavity ring-down spectroscopy using mid-IR light from a difference frequency generation PPLN waveguide

Roberto Grilli, Luca Ciaffoni, and Andrew J. Orr-Ewing  »View Author Affiliations


Optics Letters, Vol. 35, Issue 9, pp. 1383-1385 (2010)
http://dx.doi.org/10.1364/OL.35.001383


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Abstract

Approximately 200 μ W of mid-infrared (mid-IR) light around 3081 cm 1 , produced by difference frequency generation (DFG) in a periodically poled lithium niobate crystal waveguide, has been used for phase-shift cavity ring-down spectroscopy measurements. The overlapping C 12 2 H 4 P R 0 ( 14 ) and R P 6 ( 10 ) and C 12 H 2 C 13 H 2 Q P 3 ( 10 ) rotational lines of the ν 9 fundamental ethene vibrational band at 3081.0016 cm 1 were probed in proof-of-principle experiments, and ethene detection was demonstrated with a minimum absorption coefficient of 1.4 × 10 7 cm 1 ( 4   min acquisition time). The compact DFG system, with a > 35 cm 1 tuning range, has a considerable potential for use in trace gas detection and in molecular spectroscopy.

© 2010 Optical Society of America

OCIS Codes
(010.1120) Atmospheric and oceanic optics : Air pollution monitoring
(040.3060) Detectors : Infrared
(050.5080) Diffraction and gratings : Phase shift
(140.0140) Lasers and laser optics : Lasers and laser optics
(190.0190) Nonlinear optics : Nonlinear optics
(300.0300) Spectroscopy : Spectroscopy

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: January 26, 2010
Manuscript Accepted: March 10, 2010
Published: April 26, 2010

Citation
Roberto Grilli, Luca Ciaffoni, and Andrew J. Orr-Ewing, "Phase-shift cavity ring-down spectroscopy using mid-IR light from a difference frequency generation PPLN waveguide," Opt. Lett. 35, 1383-1385 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-9-1383

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