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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 36, Iss. 13 — Jul. 1, 2011
  • pp: 2399–2401

“All air–plasma” terahertz spectroscopy

Benjamin Clough, Jingle Liu, and X.-C. Zhang  »View Author Affiliations

Optics Letters, Vol. 36, Issue 13, pp. 2399-2401 (2011)

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We demonstrate terahertz wave generation and detection capabilities up to 6 THz without the need for solid state materials, biased electrodes, or forward propagating signal collection. An “all air–plasma” terahertz system is used to encode explosive material resonant signatures into the 357 nm nitrogen fluorescence line of a bichromatic field-induced laser plasma filament. These results show the practicability to extend these measurements to remote locations where terahertz pulse information is no longer limited by water vapor absorption, phonon resonance, or signal collection directionality.

© 2011 Optical Society of America

OCIS Codes
(280.3420) Remote sensing and sensors : Laser sensors
(300.2530) Spectroscopy : Fluorescence, laser-induced
(350.5400) Other areas of optics : Plasmas
(040.2235) Detectors : Far infrared or terahertz
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Lasers and Laser Optics

Original Manuscript: March 14, 2011
Revised Manuscript: May 17, 2011
Manuscript Accepted: May 20, 2011
Published: June 20, 2011

Benjamin Clough, Jingle Liu, and X.-C. Zhang, "“All air–plasma” terahertz spectroscopy," Opt. Lett. 36, 2399-2401 (2011)

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