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

Standard

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

In: Plasma Physics and Controlled Fusion, Vol. 63, No. 4, 045001, 04.2021.

Research output: Contribution to journal › Article › peer-review

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