Polarization control of terahertz radiation from two-color femtosecond gas breakdown plasma

O. Kosareva; M. Esaulkov; N. Panov; V. Andreeva; D. Shipilo; P. Solyankin; A. Demircan; I. Babushkin; V. Makarov; U. Morgner; A. Shkurinov; A. Savel'ev

doi:10.1364/OL.43.000090

Polarization control of terahertz radiation from two-color femtosecond gas breakdown plasma

O. Kosareva, M. Esaulkov, N. Panov, V. Andreeva, D. Shipilo, P. Solyankin, A. Demircan, I. Babushkin, V. Makarov, U. Morgner, A. Shkurinov, A. Savel'ev

Mathematics

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32 Scopus citations

Abstract

We individually control polarizations of 800 and 400 nm beams, which form a two-color femtosecond plasma filament in air irradiating a linear-to-elliptical THz signal. We detected a threshold-like appearance of THz ellipticity at the angle of ~85° between the fundamental and second-harmonic field polarization directions. The simulations confirm the abrupt change of THz polarization and reveal that the weak ellipticity of the second harmonic is sufficient to generate essentially elliptical THz radiation.

Original language	English (US)
Pages (from-to)	90-93
Number of pages	4
Journal	Optics Letters
Volume	43
Issue number	1
DOIs	https://doi.org/10.1364/OL.43.000090
State	Published - Jan 1 2018

Bibliographical note

Funding Information:
Funding. Russian Science Foundation (RSF) (16-42-01060); Deutsche Forschungsgemeinschaft (DFG) (BA 4156/4-1, MO 850-19/1, MO 850-20/1).

Publisher Copyright:
© 2018 Optical Society of America.

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abstract = "We individually control polarizations of 800 and 400 nm beams, which form a two-color femtosecond plasma filament in air irradiating a linear-to-elliptical THz signal. We detected a threshold-like appearance of THz ellipticity at the angle of ~85° between the fundamental and second-harmonic field polarization directions. The simulations confirm the abrupt change of THz polarization and reveal that the weak ellipticity of the second harmonic is sufficient to generate essentially elliptical THz radiation.",

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AU - Kosareva, O.

AU - Esaulkov, M.

AU - Panov, N.

AU - Andreeva, V.

AU - Shipilo, D.

AU - Solyankin, P.

AU - Demircan, A.

AU - Babushkin, I.

AU - Makarov, V.

AU - Morgner, U.

AU - Shkurinov, A.

AU - Savel'ev, A.

N1 - Funding Information: Funding. Russian Science Foundation (RSF) (16-42-01060); Deutsche Forschungsgemeinschaft (DFG) (BA 4156/4-1, MO 850-19/1, MO 850-20/1). Publisher Copyright: © 2018 Optical Society of America.

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AB - We individually control polarizations of 800 and 400 nm beams, which form a two-color femtosecond plasma filament in air irradiating a linear-to-elliptical THz signal. We detected a threshold-like appearance of THz ellipticity at the angle of ~85° between the fundamental and second-harmonic field polarization directions. The simulations confirm the abrupt change of THz polarization and reveal that the weak ellipticity of the second harmonic is sufficient to generate essentially elliptical THz radiation.

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Polarization control of terahertz radiation from two-color femtosecond gas breakdown plasma

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