Backward Terahertz Radiation from a Two-Color Femtosecond Laser Filament

We report the first experimental observation of backward terahertz emission from the two-color laser induced plasma filament in air. The ratio of measured forward-to-backward terahertz radiation is ∼25/1. This result agrees with numerical simulations based on interferometric model assuming 0.3 mm lo...

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Bibliographic Details
Published in:JETP letters 2017-12, Vol.106 (11), p.706-708
Main Authors: Ushakov, A. A., Matoba, M., Nemoto, N., Kanda, N., Konishi, K., Chizhov, P. A., Panov, N. A., Shipilo, D. E., Bukin, V. V., Kuwata-Gonokami, M., Yumoto, J., Kosareva, O. G., Garnov, S. V., Savel’ev, A. B.
Format: Article
Language:English
Subjects:
Atomic
Biological and Medical Physics
Biophysics
Color
Computer simulation
Doppler effect
Interferometry
Laser plasmas
Lasers
Mathematical models
Molecular
Optical and Plasma Physics
Optics and Laser Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quantum Information Technology
Solid State Physics
Spintronics
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Summary:We report the first experimental observation of backward terahertz emission from the two-color laser induced plasma filament in air. The ratio of measured forward-to-backward terahertz radiation is ∼25/1. This result agrees with numerical simulations based on interferometric model assuming 0.3 mm long plasma source.
ISSN:0021-3640
1090-6487
DOI:10.1134/S0021364017230047