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Efficient extreme ultraviolet emission from xenon-cluster jet targets at high repetition rate laser illumination
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2003 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 94, no 9, 5489-5496 p.Article in journal (Refereed) Published
Abstract [en]

We studied extreme ultraviolet (EUV) emission from Xe cluster jet targets irradiated with high repetitive ps and ns laser pulses in the intensity range between 10(11) and 10(15) W/cm(2). It was found that at fixed intensity the conversion efficiency of the laser energy into the EUV emission is higher for ns pulses. In the intensity range used no saturation of the 13.4 nm signal could be reached. At ns pulse duration a conversion efficiency 0.26%@13.4 nm in 2pi steradian and 2.2% bandwidth was reached. The laser energy deposition is discussed in relation to the plasma dynamics of the cluster target. We demonstrated that due to the high flow velocity of the cluster jet target an exposition with laser pulses up to 125 kHz repetition rate is possible without any degradation of the EUV emission efficiency. Both the high conversion efficiency and the high repetition rate make this Xe target attractive for an EUV source with high average EUV power.

Place, publisher, year, edition, pages
2003. Vol. 94, no 9, 5489-5496 p.
Keyword [en]
high-intensity lasers, absolute euv-yield, gas puff target, x-ray emission, ionized xenon, pulse-width, atomic clusters, plasma, spectroscopy, transitions
URN: urn:nbn:se:kth:diva-22907DOI: 10.1063/1.1614862ISI: 000186138600004OAI: diva2:341605
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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Vogt, Ulrich
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