Isolated-attosecond-pulse high-order harmonic generation of keV x rays

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Abstract

Using rare-gas ions as the interacting medium, phase-matched high-order harmonic generation up to 1-keV hard x ray can be achieved by balancing the negative plasma dispersion and Gouy phase shift with the positive, intensity-dependent, intrinsic dipole phase variation. The time-dependent phase-matching condition automatically gates the harmonic output to an isolated attosecond pulse. The estimated pulse duration is as short as 120 as.

Original languageEnglish
Article number053511
JournalPhysical Review A
Volume109
Issue number5
DOIs
StatePublished - May 2024

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