Terahertz wave air photonics: Terahertz wave generation and detection with laser-induced gas plasma

  • Dai J
  • Liu J
  • Zhang X
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Abstract

Ultrabroadband, intense terahertz (THz) waves can be generated and detected using gaseous media as both the THz wave emitter and sensor, with a bandwidth covering the entire “THz gap” and well beyond. We review our most recent experimental and theoretical progress in THz generation, detection, and manipulation in laser-induced gas plasma. In the generation part, emphasis will be on the case with two-color excitation of gaseous media. Potential applications of these novel THz generation and detection techniques will also be discussed and proof-of-principle experiments are demonstrated.

Author-supplied keywords

  • Broadband terahertz (THz) source
  • coherent control
  • laser-induced gas plasma
  • photoionization
  • remote THz wave sensing

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Authors

  • Jianming Dai

  • Jingle Liu

  • Xi Cheng Zhang

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