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Emission of thermal...
Emission of thermally activated electrons from rare gas clusters irradiated with intense VUV light pulses from a free electron laser
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Laarmann, T (author)
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Rusek, M (author)
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Wabnitz, H (author)
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- Schulz, Joachim (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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de Castro, ARB (author)
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Gurtler, P (author)
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Laasch, W (author)
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Moller, T (author)
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(creator_code:org_t)
- 2005
- 2005
- English.
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In: Physical Review Letters. - 1079-7114. ; 95:6
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
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- The ionization dynamics of Ar and Xe clusters irradiated with intense vacuum ultraviolet light from a free-electron laser is investigated using photoelectron spectroscopy. Clusters comprising between 70 and 900 atoms were irradiated with femtosecond pulses at 95 nm wavelength (similar to 13 eV photon energy) and a peak intensity of similar to 4x10(12) W/cm(2). A broad thermal distribution of emitted electrons from clusters with a maximum kinetic energy up to 30-40 eV is observed. The observation of relatively low-energy photoelectrons is in good agreement with calculations using a time-dependent Thomas-Fermi model and gives experimental evidence of an outer ionization process of the clusters, due to delayed thermoelectronic emission.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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