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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 33, Iss. 18 — Sep. 15, 2008
  • pp: 2125–2127

All-semiconductor room-temperature terahertz time domain spectrometer

Zakaria Mihoubi, Keith G. Wilcox, Stephen Elsmere, Adrian Quarterman, Rakchanok Rungsawang, Ian Farrer, Harvey E. Beere, David A. Ritchie, Anne Tropper, and Vasileios Apostolopoulos  »View Author Affiliations

Optics Letters, Vol. 33, Issue 18, pp. 2125-2127 (2008)

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We report what we believe to be the first demonstration of an all-semiconductor room-temperature terahertz time domain spectrometer. An optical Stark mode-locked vertical-external-cavity surface-emitting laser with 480 fs pulses at 1044 nm was used to illuminate low-temperature-grown photoconductive antennae with 5 μ m -gap bow-tie-shaped electrodes. The coherently detected spectrum has a bandwidth close to 1 THz , in which water absorption lines at 0.555 and 0.751 THz can be resolved.

© 2008 Optical Society of America

OCIS Codes
(140.4050) Lasers and laser optics : Mode-locked lasers
(300.6495) Spectroscopy : Spectroscopy, teraherz
(140.7270) Lasers and laser optics : Vertical emitting lasers

ToC Category:
Lasers and Laser Optics

Original Manuscript: June 17, 2008
Revised Manuscript: August 1, 2008
Manuscript Accepted: August 1, 2008
Published: September 12, 2008

Zakaria Mihoubi, Keith G. Wilcox, Stephen Elsmere, Adrian Quarterman, Rakchanok Rungsawang, Ian Farrer, Harvey E. Beere, David A. Ritchie, Anne Tropper, and Vasileios Apostolopoulos, "All-semiconductor room-temperature terahertz time domain spectrometer," Opt. Lett. 33, 2125-2127 (2008)

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