Radiofrequency conical emission from femtosecond filaments in air

We show that the broadband conical emission associated with filaments in air extends down to the radiofrequency region. This rf emission which originates from the longitudinal oscillation of charged ions formed during filamentation is strongly enhanced by the presence of a longitudinal static electr...

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Veröffentlicht in:	Applied physics letters 2010-04, Vol.96 (14), p.141111-141111-3
Hauptverfasser:	Forestier, B., Houard, A., Durand, M., André, Y. B., Prade, B., Dauvignac, J.-Y., Perret, F., Pichot, Ch, Pellet, M., Mysyrowicz, A.
Format:	Artikel
Sprache:	eng
Schlagworte:	70 PLASMA PHYSICS AND FUSION TECHNOLOGY AIR CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ELECTRIC DISCHARGES ELECTRIC FIELDS ELECTROMAGNETIC RADIATION FILAMENTS FLUIDS GASES HIGH-FREQUENCY DISCHARGES LASERS Optics Physics PLASMA PRODUCTION PLASMA WAVES RADIATIONS RADIOWAVE RADIATION
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Beschreibung
Zusammenfassung:	We show that the broadband conical emission associated with filaments in air extends down to the radiofrequency region. This rf emission which originates from the longitudinal oscillation of charged ions formed during filamentation is strongly enhanced by the presence of a longitudinal static electric field.
ISSN:	0003-6951 1077-3118
DOI:	10.1063/1.3378266