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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 36, Iss. 1 — Jan. 1, 2011
  • pp: 61–63

Doppler-free spectroscopy of mercury at 253.7 nm using a high-power, frequency-quadrupled, optically pumped external-cavity semiconductor laser

Justin Paul, Yushi Kaneda, Tsuei-Lian Wang, Christian Lytle, Jerome V. Moloney, and R. Jason Jones  »View Author Affiliations


Optics Letters, Vol. 36, Issue 1, pp. 61-63 (2011)
http://dx.doi.org/10.1364/OL.36.000061


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Abstract

We have developed a stable, high-power, single-frequency optically pumped external-cavity semiconductor laser system and generate up to 125 mW of power at 253.7 nm using successive frequency doubling stages. We demonstrate precision scanning and control of the laser frequency in the UV to be used for cooling and trapping of mercury atoms. With active frequency stabilization, a linewidth of < 60 kHz is measured in the IR. Doppler-free spectroscopy and stabilization to the 6 1 S 0 6 3 P 1 mercury transition at 253.7 nm is demonstrated. To our knowledge, this is the first demonstration of Doppler-free spectroscopy in the deep UV based on a frequency-quadrupled, high-power ( > 1 W ) optically pumped semiconductor laser system. The results demonstrate the utility of these devices for precision spectroscopy at deep-UV wavelengths.

© 2011 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3610) Lasers and laser optics : Lasers, ultraviolet
(190.2620) Nonlinear optics : Harmonic generation and mixing
(300.6540) Spectroscopy : Spectroscopy, ultraviolet

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: September 8, 2010
Revised Manuscript: November 26, 2010
Manuscript Accepted: November 29, 2010
Published: December 23, 2010

Citation
Justin Paul, Yushi Kaneda, Tsuei-Lian Wang, Christian Lytle, Jerome V. Moloney, and R. Jason Jones, "Doppler-free spectroscopy of mercury at 253.7 nm using a high-power, frequency-quadrupled, optically pumped external-cavity semiconductor laser," Opt. Lett. 36, 61-63 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-1-61

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