Generation of Langmuir wave supercontinuum by phase-preserving equilibration of plasmons with irreversible wave–particle interaction

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Abstract

Abstract: We report the observation of supercontinuum of Langmuir plasma waves, that exhibits broad power spectrum having significant spatio-temporal coherence grown from a monochromatic seed-wave, in one-dimensional particle-in-cell simulations. The Langmuir wave supercontinuum (LWSC) is formed when the seed wave excites side-band fields efficiently by the modulational instabilities. Its identification is achieved by the use of the tricoherence analysis, which detects four wave mixings (FWMs) of plasmons (plasma wave quanta), and evaluation of the first order coherence, which is a measure of temporal coherence, of the wave electric fields. The irreversible evolution to the coherent LWSC from the seed wave is realized by the wave–particle interactions causing stochastic electron motions in the phase space and the coherence of LWSC is maintained by the phase-preserving FWMs of plasmons. The LWSC corresponds to a quasi Bernstein-Greene-Kruskal mode. Graphical abstract: [Figure not available: see fulltext.].

Original languageEnglish
Article number63
JournalEuropean Physical Journal D
Volume72
Issue number4
DOIs
Publication statusPublished - 2018 Apr 1

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plasmons
preserving
interactions
seeds
plasma waves
four-wave mixing
power spectra
electric fields
evaluation
cells
electrons

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

@article{f4f3135d5e454b128b50e018a09e3b1d,
title = "Generation of Langmuir wave supercontinuum by phase-preserving equilibration of plasmons with irreversible wave–particle interaction",
abstract = "Abstract: We report the observation of supercontinuum of Langmuir plasma waves, that exhibits broad power spectrum having significant spatio-temporal coherence grown from a monochromatic seed-wave, in one-dimensional particle-in-cell simulations. The Langmuir wave supercontinuum (LWSC) is formed when the seed wave excites side-band fields efficiently by the modulational instabilities. Its identification is achieved by the use of the tricoherence analysis, which detects four wave mixings (FWMs) of plasmons (plasma wave quanta), and evaluation of the first order coherence, which is a measure of temporal coherence, of the wave electric fields. The irreversible evolution to the coherent LWSC from the seed wave is realized by the wave–particle interactions causing stochastic electron motions in the phase space and the coherence of LWSC is maintained by the phase-preserving FWMs of plasmons. The LWSC corresponds to a quasi Bernstein-Greene-Kruskal mode. Graphical abstract: [Figure not available: see fulltext.].",
author = "Kawamori Eiichirou",
year = "2018",
month = "4",
day = "1",
doi = "10.1140/epjd/e2018-80502-8",
language = "English",
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journal = "European Physical Journal D",
issn = "1434-6060",
publisher = "Springer New York",
number = "4",

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T1 - Generation of Langmuir wave supercontinuum by phase-preserving equilibration of plasmons with irreversible wave–particle interaction

AU - Eiichirou, Kawamori

PY - 2018/4/1

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N2 - Abstract: We report the observation of supercontinuum of Langmuir plasma waves, that exhibits broad power spectrum having significant spatio-temporal coherence grown from a monochromatic seed-wave, in one-dimensional particle-in-cell simulations. The Langmuir wave supercontinuum (LWSC) is formed when the seed wave excites side-band fields efficiently by the modulational instabilities. Its identification is achieved by the use of the tricoherence analysis, which detects four wave mixings (FWMs) of plasmons (plasma wave quanta), and evaluation of the first order coherence, which is a measure of temporal coherence, of the wave electric fields. The irreversible evolution to the coherent LWSC from the seed wave is realized by the wave–particle interactions causing stochastic electron motions in the phase space and the coherence of LWSC is maintained by the phase-preserving FWMs of plasmons. The LWSC corresponds to a quasi Bernstein-Greene-Kruskal mode. Graphical abstract: [Figure not available: see fulltext.].

AB - Abstract: We report the observation of supercontinuum of Langmuir plasma waves, that exhibits broad power spectrum having significant spatio-temporal coherence grown from a monochromatic seed-wave, in one-dimensional particle-in-cell simulations. The Langmuir wave supercontinuum (LWSC) is formed when the seed wave excites side-band fields efficiently by the modulational instabilities. Its identification is achieved by the use of the tricoherence analysis, which detects four wave mixings (FWMs) of plasmons (plasma wave quanta), and evaluation of the first order coherence, which is a measure of temporal coherence, of the wave electric fields. The irreversible evolution to the coherent LWSC from the seed wave is realized by the wave–particle interactions causing stochastic electron motions in the phase space and the coherence of LWSC is maintained by the phase-preserving FWMs of plasmons. The LWSC corresponds to a quasi Bernstein-Greene-Kruskal mode. Graphical abstract: [Figure not available: see fulltext.].

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