Propagation distance-resolved characteristics of filament-induced copper plasma
作者： Isaac Ghebregziabher , Kyle C. Hartig , Igor Jovanovic
DOI: 10.1364/OE.24.005263
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摘要: Copper plasma generated at different filament-copper interaction points was characterized by spectroscopic, acoustic, and imaging measurements. The longitudinal variation of the filament intensity qualitatively determined acoustic measurements in air. maximum temperature measured location peak intensity, corresponding to mean electron energy during formation. highest copper density past filament, where spectral broadening leads enhanced ionization. Acoustic air on solid target were correlated reconstructed properties. Optimal line emission is near geometric focus lens used produce filament.
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