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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 25 — Dec. 7, 2009
  • pp: 22847–22854

Rapid-scanning terahertz precision spectrometer with more than 6 THz spectral coverage

G. Klatt, R. Gebs, C. Janke, T. Dekorsy, and A. Bartels  »View Author Affiliations


Optics Express, Vol. 17, Issue 25, pp. 22847-22854 (2009)
http://dx.doi.org/10.1364/OE.17.022847


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Abstract

We report a terahertz time-domain spectrometer with more than 6 THz spectral coverage and 1 GHz resolution based on high-speed asynchronous optical sampling. It operates at 2 kHz scan rate without mechanical delay stage. The frequency error of the system at 60 s acquisition time is determined by comparing a measured water vapor absorption spectrum to data reported in the HITRAN database. The mean error of 87 evaluated absorption lines is 142 MHz.

© 2009 OSA

OCIS Codes
(320.7090) Ultrafast optics : Ultrafast lasers
(320.7150) Ultrafast optics : Ultrafast spectroscopy
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Spectroscopy

History
Original Manuscript: October 7, 2009
Revised Manuscript: November 19, 2009
Manuscript Accepted: November 20, 2009
Published: November 30, 2009

Citation
G. Klatt, R. Gebs, C. Janke, T. Dekorsy, and A. Bartels, "Rapid-scanning terahertz precision spectrometer with more than 6 THz spectral coverage," Opt. Express 17, 22847-22854 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-25-22847


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