4.5 Article

Recent Progresses in Terahertz Wave Air Photonics

Journal

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TTHZ.2011.2159550

Keywords

Broadband terahertz waves; coherent control; laser-induced gas plasma; remote terahertz wave sensing; THz radiation-enhanced emission of fluorescence (THz-REEF); THz-enhanced acoustics (TEA)

Funding

  1. U.S. Office of Naval Research (ONR)
  2. Defense Threat Reduction Agency (DTRA)
  3. National Science Foundation (NSF) [0333314]
  4. U.S. Department of Homeland Security through the DHS-ALERT Center [2008-ST-061-ED0001]

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Terahertz (THz) wave generation and detection using gaseous medium as both the THz wave emitter and sensor, also termed THz wave air photonics, has attracted much scientific attention. We report the most recent progresses in THz generation and detection in laser-induced gas plasma. The overall emphasis of this paper is on THz wave detection with gaseous medium, while in the generation part, emphasis will be on the case with two-color laser excitation.

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