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Waves in plasma formed by above-threshold ionization of gas atoms

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dc.contributor.authorVagin, K. Y.
dc.contributor.authorMamontova, T. V.
dc.contributor.authorUryupin, S. A.
dc.contributor.authorМамонтова, Татьяна Вячеславовна
dc.contributor.authorУрюпин, Сергей Александрович
dc.date.accessioned2024-11-21T09:26:02Z
dc.date.available2024-11-21T09:26:02Z
dc.date.issued2019
dc.description.abstract© 2019In the regime of above-threshold ionization of gas atom in the field of laser radiation, plasma with photoelectron distribution consisting of peaks at discrete energy values is formed. It is shown that the number of longitudinal waves in such plasma coincides with the number of peaks in the distribution function. When peaks practically don't overlap, the dispersion law of each wave in the region of short waves is determined by electrons from the corresponding peak. In this case the phase and group velocities of the waves are close to the electron velocity, which corresponds to the peak maximum. It is possible to talk about such waves as an electronic sound, since the perturbations of the electron density mainly arise due to pressure perturbations. When the peaks are narrow, but having a finite width, the Cherenkov damping of waves is exponentially small. Numerical calculations the dispersion laws for of the two and four waves in photoionized xenon plasma, in which the electron distribution function consists of two or four narrow peaks are given.
dc.identifier.citationVagin, K. Y. Waves in plasma formed by above-threshold ionization of gas atoms / Vagin, K.Y., Mamontova, T.V., Uryupin, S.A. // Physics Letters, Section A: General, Atomic and Solid State Physics. - 2019. - 10.1016/j.physleta.2019.06.004
dc.identifier.doi10.1016/j.physleta.2019.06.004
dc.identifier.urihttps://www.doi.org/10.1016/j.physleta.2019.06.004
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85066873512&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000482521800012
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/18220
dc.relation.ispartofPhysics Letters, Section A: General, Atomic and Solid State Physics
dc.titleWaves in plasma formed by above-threshold ionization of gas atoms
dc.typeArticle
dspace.entity.typePublication
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