Affordable Access

Coherent subterahertz radiation from femtosecond infrared filaments in air

Authors
  • Tzortzakis, Stellios
  • Méchain, Grégoire
  • Patalano, G.
  • André, Yves-Bernard
  • Prade, Bernard
  • Franco, Michel
  • Mysyrowicz, André
  • Munier, J.-M.
  • Gheudin, M.
  • Beaudin, G.
  • Encrenaz, Pierre
Publication Date
Nov 01, 2002
Source
HAL
Keywords
Language
English
License
Unknown
External links

Abstract

We report on what is believed to be the first observation of coherent subterahertz (sub-THz) emission from a 1-m string in the atmosphere. The sub-THz pulse emitted by the filamentary structure from an intense IR femtosecond laser pulse is detected perpendicularly to the laser propagation axis by use of two heterodyne detectors at 94±1 and 118±1GHz . We describe the characteristics of this emission and show evidence of constructive interference between two separate strings.

Report this publication

Statistics

Seen <100 times