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Authors: A. V. Bogatskaya 1 ; A. M. Popov 1 and E. A. Volkova 2

Affiliations: 1 Moscow State University and P. N. Lebedev Physical Institute, Russian Federation ; 2 Moscow State University, Russian Federation

Keyword(s): Multiphoton Ionization, Plasma Channel, Amplification of the Electromagnetic Radiation, Electron Energy Distribution Function.

Related Ontology Subjects/Areas/Topics: High Intensity Lasers and High Field Phenomena ; Lasers ; Mobile Software and Services ; Nonlinear Optics ; Photonics ; Photonics, Optics and Laser Technology ; Plasma Technologies ; Telecommunications ; Wireless Information Networks and Systems

Abstract: The evolution of the electron energy distribution function in the plasma channel created in air by the third harmonic of the Ti:Sa-laser pulse of femtosecond duration is studied. It is shown that such a channel can be used to amplify few-cycle electromagnetic pulses in subterahertz frequency range at the time of relaxation of the energy spectrum in air determined by the vibrational excitation of the nitrogen molecules. The coefficients of the gain as a function of time, electron concentration and frequency of the amplifying radiation are obtained. The propagation of few-cycle radio-frequency pulses through the amplifying medium is analyzed.

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Paper citation in several formats:
Bogatskaya, A.; Popov, A. and Volkova, E. (2014). Propagation and Amplification of a Short Subterahertz Pulse in a Plasma Channel in Air Created by Intense Laser Radiation. In Proceedings of 2nd International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS; ISBN 978-989-758-008-6; ISSN 2184-4364, SciTePress, pages 199-204. DOI: 10.5220/0004723501990204

@conference{photoptics14,
author={A. V. Bogatskaya. and A. M. Popov. and E. A. Volkova.},
title={Propagation and Amplification of a Short Subterahertz Pulse in a Plasma Channel in Air Created by Intense Laser Radiation},
booktitle={Proceedings of 2nd International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS},
year={2014},
pages={199-204},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004723501990204},
isbn={978-989-758-008-6},
issn={2184-4364},
}

TY - CONF

JO - Proceedings of 2nd International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS
TI - Propagation and Amplification of a Short Subterahertz Pulse in a Plasma Channel in Air Created by Intense Laser Radiation
SN - 978-989-758-008-6
IS - 2184-4364
AU - Bogatskaya, A.
AU - Popov, A.
AU - Volkova, E.
PY - 2014
SP - 199
EP - 204
DO - 10.5220/0004723501990204
PB - SciTePress