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Choi, EunMi
THz Vacuum Electronics and Electrodynamics
Research Interests
  • High power millimeter-wave/THz wave, vacuum electronics, plasma breakdown, electron beams, electromagnetics, microwave/RF engineering


Observation of large arrays of plasma filaments in air breakdown by 1.5-MW 110-GHz gyrotron pulses

DC Field Value Language Hidaka, Yoshiteru ko Choi, EunMi ko Mastovsky, I. ko Shapiro, M. A. ko Sirigiri, J. R. ko Temkin, R. J. ko 2015-03-16T05:29:19Z - 2014-11-11 ko 2008-01 ko
dc.identifier.citation PHYSICAL REVIEW LETTERS, v.100, no.3, pp.1 - 4 ko
dc.identifier.issn 0031-9007 ko
dc.identifier.uri -
dc.description.abstract We report the observation of two-dimensional plasma filamentary arrays with more than 100 elements generated during breakdown of air at atmospheric pressure by a focused Gaussian beam from a 1.5-MW, 110-GHz gyrotron operating in 3-mu s pulses. Each element is a plasma filament elongated in the electric field direction and regularly spaced about one-quarter wavelength apart in the plane perpendicular to the electric field. The development of the array is explained as a result of diffraction of the beam around the filaments, leading to the sequential generation of high intensity spots, at which new filaments are created, about a quarter wavelength upstream from each existing filament. Electromagnetic wave simulations corroborate this explanation and show very good correlation to the observed pattern of filaments. ko
dc.description.statementofresponsibility open -
dc.language 영어 ko
dc.publisher AMER PHYSICAL SOC ko
dc.title Observation of large arrays of plasma filaments in air breakdown by 1.5-MW 110-GHz gyrotron pulses ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-38549181564 ko
dc.identifier.wosid 000252698100045 ko
dc.type.rims ART ko
dc.description.wostc 42 *
dc.description.scopustc 41 * 2015-12-28 * 2015-11-04 *
dc.identifier.doi 10.1103/PhysRevLett.100.035003 ko
dc.identifier.url ko
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