Title :
Femtosecond infrared filaments in air: a source of coherent THz radiation
Author :
Tzortzakis, S. ; Mechain, G. ; Franco, M. ; Prade, B. ; Mysyrowicz, A.
Author_Institution :
Lab. d´Optique Appliquee, Ecole Polytech., Palaiseau, France
Abstract :
We observe coherent THz emission from a 1-m plasma string produced by an IR fs laser pulse in atmosphere. The THz pulse is detected perpendicular to the laser propagation axis using heterodyne detection.
Keywords :
heterodyne detection; optical pulse generation; submillimetre wave generation; 1 m; Femtosecond infrared filaments; IR femtosecond laser pulse; THz pulse detection; air; coherent THz radiation; heterodyne detection; plasma string; Chemical lasers; Free electron lasers; Ionizing radiation; Nonlinear optics; Optical propagation; Optical pulses; Plasma sources; Radiation detectors; Stimulated emission; Ultrafast optics;
Conference_Titel :
Quantum Electronics and Laser Science, 2003. QELS. Postconference Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-749-0
DOI :
10.1109/QELS.2003.238642
