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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 21 — Oct. 17, 2005
  • pp: 8357–8364

Doppler-free spectroscopy of xenon in the mid-infrared using difference-frequency radiation

G. Rusciano, A. C. De Luca, F. Pignatiello, and A. Sasso  »View Author Affiliations

Optics Express, Vol. 13, Issue 21, pp. 8357-8364 (2005)

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We report on the first Doppler-free spectroscopy investigation of an atomic species, xenon, performed in the mid-infrared using difference-frequency radiation. The absorption saturated spectrum of the xenon 6p[3/2]2→5d[5/2]3 transition (2p6→3d’1 in Paschen notation) at 3.1076 μm was investigated using about 60 microwatts of cw narrowband radiation (Δv=50 kHz) generated by difference-frequency mixing in a periodically-poled Lithium Niobate crystal. A single frequency Ti: Sapphire laser (power 800 mW) and a monolithic diode-pumped Nd:YAG laser (300 mW) were used as pump and signal waves respectively. We used natural enriched xenon, which contains nine stable isotopes, two of which, 129Xe and 131Xe, exhibit a hyperfine structure owing to their nuclear spin. The small isotope displacements expected for this atom and the complex hyperfine structure of the odd isotopes make it difficult to fully resolve the recorded saturated-absorption spectra. In spite of this, we have been able to analyze the isolated 129Xe F’’=5/2→F’=7/2 hyperfine component by means of first-derivative FM spectroscopy.

© 2005 Optical Society of America

OCIS Codes
(300.6210) Spectroscopy : Spectroscopy, atomic
(300.6460) Spectroscopy : Spectroscopy, saturation

ToC Category:
Research Papers

Original Manuscript: August 29, 2005
Revised Manuscript: September 27, 2005
Published: October 17, 2005

G. Rusciano, A. De Luca, F. Pignatiello, and A. Sasso, "Doppler-free spectroscopy of xenon in the mid-infrared using difference-frequency radiation," Opt. Express 13, 8357-8364 (2005)

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