Radiofrequency plasma antenna generated by femtosecond laser filaments in air

Yohann Brelet 1 Aurélien Houard 2 Guillaume Point 1 Bernard Prade 1 Leonid Arantchouk 3 Jérôme Carbonnel 1 Yves-Bernard André 1 Michel Pellet 4 André Mysyrowicz 1
1 ILM - Interaction Laser-Matière
LOA - Laboratoire d'optique appliquée
2 LOA - Laboratoire d'optique appliquée
3 LPP - Laboratoire de Physique des Plasmas
4 Ministère de la défense
Abstract : We demonstrate tunable radiofrequency emission from a meter-long linear plasma column produced in air at atmospheric pressure. A short-lived plasma column is initially produced by femtosecond filamentation and subsequently converted into a long-lived discharge column by application of an external high voltage field. Radiofrequency excitation is fed to the plasma by induction and detected remotely as electromagnetic radiation by a classical antenna.
Keywords : air antennas in plasma high-frequency discharges plasma light propagation plasma production
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Yohann Brelet, Aurélien Houard, Guillaume Point, Bernard Prade, Leonid Arantchouk, et al.. Radiofrequency plasma antenna generated by femtosecond laser filaments in air. Applied Physics Letters, American Institute of Physics, 2012, 101 (26), pp.264106. ⟨10.1063/1.4773492⟩. ⟨hal-00852044⟩

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