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K-shell x-ray emission enhancement via self-guided propagation of intense laser pulses in Ar clusters



K-shell x-ray emission enhancement via self-guided propagation of intense laser pulses in Ar clusters



Optics Express 17(19): 16379-16384



K-shell x-ray at about 3 keV emitted from Ar clusters irradiated by 110 mJ 55 fs intense laser pulses is studied. The x-ray flux is optimized by moving the nozzle away from the focus of the laser pulse. The total flux of K-shell x-ray photons in 4pi reaches a maximum of 4.5x10(9) photons/shot with a conversion efficiency of 2.5x10(-5) when the nozzle displacement is 2 mm and a long plasma channel is observed by a probe beam.

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Accession: 054033563

Download citation: RISBibTeXText

PMID: 19770851

DOI: 10.1364/OE.17.016379


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