Electromagnetic emission due to nonlinear interaction of laser wakefields colliding in plasma at an oblique angle

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Electromagnetic emission due to nonlinear interaction of laser wakefields colliding in plasma at an oblique angle. / Volchok, E.; Annenkov, V.; Timofeev, I.

в: Plasma Physics and Controlled Fusion, Том 63, № 4, 045001, 04.2021.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{b1b559f3cc1940ab8d6218c471ab7d42,

title = "Electromagnetic emission due to nonlinear interaction of laser wakefields colliding in plasma at an oblique angle",

abstract = "Head-on collision of laser-induced plasma wakefields with differing profiles of electrostatic potential has been recently found to be an efficient mechanism for generating high-power electromagnetic emission at the second harmonic of the plasma frequency (Timofeev et al 2017 Phys. Plasmas 24 103106). This mechanism is attractive for creating a source of tunable narrow-band coherent radiation in the terahertz frequency range. In this paper, we generalize the theory of electromagnetic emission produced by non-linear interaction of two plasma wakes to the case of an arbitrary collision angle. Such a theory is used to evaluate the angular distribution of the second harmonic radiation as well as its total generation efficiency for parameters of the proof-of-principle experiment in which laser axes will be aligned with a small finite angle. Theoretical predictions are qualitatively confirmed by particle-in-cell simulations. ",

keywords = "electromagnetic emission, laser-plasma interaction, plasma wakefields, terahertz generation",

author = "E. Volchok and V. Annenkov and I. Timofeev",

year = "2021",

month = apr,

doi = "10.1088/1361-6587/abdcdb",

language = "English",

volume = "63",

journal = "Plasma Physics and Controlled Fusion",

issn = "0741-3335",

publisher = "IOP Publishing Ltd.",

number = "4",

}

RIS

TY - JOUR

T1 - Electromagnetic emission due to nonlinear interaction of laser wakefields colliding in plasma at an oblique angle

AU - Volchok, E.

AU - Annenkov, V.

AU - Timofeev, I.

PY - 2021/4

Y1 - 2021/4

N2 - Head-on collision of laser-induced plasma wakefields with differing profiles of electrostatic potential has been recently found to be an efficient mechanism for generating high-power electromagnetic emission at the second harmonic of the plasma frequency (Timofeev et al 2017 Phys. Plasmas 24 103106). This mechanism is attractive for creating a source of tunable narrow-band coherent radiation in the terahertz frequency range. In this paper, we generalize the theory of electromagnetic emission produced by non-linear interaction of two plasma wakes to the case of an arbitrary collision angle. Such a theory is used to evaluate the angular distribution of the second harmonic radiation as well as its total generation efficiency for parameters of the proof-of-principle experiment in which laser axes will be aligned with a small finite angle. Theoretical predictions are qualitatively confirmed by particle-in-cell simulations.

AB - Head-on collision of laser-induced plasma wakefields with differing profiles of electrostatic potential has been recently found to be an efficient mechanism for generating high-power electromagnetic emission at the second harmonic of the plasma frequency (Timofeev et al 2017 Phys. Plasmas 24 103106). This mechanism is attractive for creating a source of tunable narrow-band coherent radiation in the terahertz frequency range. In this paper, we generalize the theory of electromagnetic emission produced by non-linear interaction of two plasma wakes to the case of an arbitrary collision angle. Such a theory is used to evaluate the angular distribution of the second harmonic radiation as well as its total generation efficiency for parameters of the proof-of-principle experiment in which laser axes will be aligned with a small finite angle. Theoretical predictions are qualitatively confirmed by particle-in-cell simulations.

KW - electromagnetic emission

KW - laser-plasma interaction

KW - plasma wakefields

KW - terahertz generation

UR - http://www.scopus.com/inward/record.url?scp=85101873126&partnerID=8YFLogxK

U2 - 10.1088/1361-6587/abdcdb

DO - 10.1088/1361-6587/abdcdb

M3 - Article

AN - SCOPUS:85101873126

VL - 63

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

SN - 0741-3335

IS - 4

M1 - 045001

ER -

ID: 28003509