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Time-Resolved XUV O...
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Vinko, S. M.University Of Oxford,Univ Oxford, Clarendon Lab, Dept Phys, Parks Rd, Oxford OX1 3PU, England.
(author)
Time-Resolved XUV Opacity Measurements of Warm Dense Aluminum
- Article/chapterEnglish2020
Publisher, publication year, extent ...
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American Physical Society,2020
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LIBRIS-ID:oai:research.chalmers.se:1600a8ac-3f3f-4b67-85be-db29faaeeb6e
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https://research.chalmers.se/publication/517534URI
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https://doi.org/10.1103/PhysRevLett.124.225002DOI
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https://research.chalmers.se/publication/517714URI
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-414956URI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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The free-free opacity in plasmas is fundamental to our understanding of energy transport in stellar interiors and for inertial confinement fusion research. However, theoretical predictions in the challenging dense plasma regime are conflicting and there is a dearth of accurate experimental data to allow for direct model validation. Here we present time-resolved transmission measurements in solid-density Al heated by an XUV free-electron laser. We use a novel functional optimization approach to extract the temperature-dependent absorption coefficient directly from an oversampled pool of single-shot measurements, and find a pronounced enhancement of the opacity as the plasma is heated to temperatures of order of the Fermi energy. Plasma heating and opacity enhancement are observed on ultrafast timescales, within the duration of the femtosecond XUV pulse. We attribute further rises in the opacity on ps timescales to melt and the formation of warm dense matter.
Subject headings and genre
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Vozda, V.Czech Academy of Sciences,Univerzita Karlova,Charles University,Charles Univ Prague, Fac Math & Phys, Inst Phys, Ke Karlovu 5, CZ-12116 Prague 2, Czech Republic.;Czech Acad Sci, Inst Phys, Na Slovance 2, Prague 18221 8, Czech Republic.
(author)
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Andreasson, Jakob,1975Czech Academy of Sciences,Chalmers tekniska högskola,Chalmers University of Technology,Czech Acad Sci, Inst Phys, ELI Beamlines, Na Slovance 2, CZ-18221 Prague 8, Czech Republic.;Chalmers Univ Technol, Dept Phys, S-41296 Gothenburg, Sweden.(Swepub:cth)jakoba
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Bajt, S.Deutsches Elektronen-Synchrotron (DESY),DESY, Notkestr 85, D-22607 Hamburg, Germany.
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Bielecki, J.European XFEL GmbH,European XFEL GmbH, Holzkoppel 4, D-22869 Schenefeld, Germany.
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Burian, T.Czech Academy of Sciences,Czech Acad Sci, Inst Phys, Na Slovance 2, Prague 18221 8, Czech Republic.
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Chalupsky, J.Czech Academy of Sciences,Czech Acad Sci, Inst Phys, Na Slovance 2, Prague 18221 8, Czech Republic.
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Ciricosta, O.University Of Oxford,Univ Oxford, Clarendon Lab, Dept Phys, Parks Rd, Oxford OX1 3PU, England.
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Desjarlais, M. P.Sandia National Laboratories,Sandia Natl Labs, Pulsed Power Sci Ctr, POB 5800, Albuquerque, NM 87185 USA.
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Fleckenstein, H.Deutsches Elektronen-Synchrotron (DESY),DESY, Ctr Free Electron Laser Sci, Notkestr 85, D-22607 Hamburg, Germany.
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Hajdu, JanosUppsala universitet,Molekylär biofysik,Czech Acad Sci, Inst Phys, ELI Beamlines, Na Slovance 2, CZ-18221 Prague 8, Czech Republic.(Swepub:uu)janohajd
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Hajkova, VCzech Academy of Sciences
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Hollebon, P.University Of Oxford,Univ Oxford, Clarendon Lab, Dept Phys, Parks Rd, Oxford OX1 3PU, England.
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Juha, L.Czech Academy of Sciences,Czech Acad Sci, Inst Phys, Na Slovance 2, Prague 18221 8, Czech Republic.
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Kasim, M. F.University Of Oxford,Univ Oxford, Clarendon Lab, Dept Phys, Parks Rd, Oxford OX1 3PU, England.
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McBride, E. E.Stanford University,SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
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Muehlig, KerstinUppsala universitet,Molekylär biofysik(Swepub:uu)kermu539
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Preston, T. R.European XFEL GmbH,European XFEL GmbH, Holzkoppel 4, D-22869 Schenefeld, Germany.
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Rackstraw, D. S.University Of Oxford,Univ Oxford, Clarendon Lab, Dept Phys, Parks Rd, Oxford OX1 3PU, England.
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Roling, S.Westfaelische Wilhelms-Universität Münster,University of Münster,Univ Munster, Busso Peus Str 10, D-48149 Munster, Germany.
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Toleikis, S.Deutsches Elektronen-Synchrotron (DESY),DESY, Notkestr 85, D-22607 Hamburg, Germany.
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Wark, J. S.University Of Oxford,Univ Oxford, Clarendon Lab, Dept Phys, Parks Rd, Oxford OX1 3PU, England.
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Zacharias, H.Westfaelische Wilhelms-Universität Münster,University of Münster,Univ Munster, Busso Peus Str 10, D-48149 Munster, Germany.
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University Of OxfordUniv Oxford, Clarendon Lab, Dept Phys, Parks Rd, Oxford OX1 3PU, England.
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In:Physical Review Letters: American Physical Society124:221079-71140031-9007
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Vinko, S. M.
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Vozda, V.
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Andreasson, Jako ...
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Bajt, S.
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Bielecki, J.
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Burian, T.
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Chalupsky, J.
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Ciricosta, O.
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Desjarlais, M. P ...
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Fleckenstein, H.
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Hajdu, Janos
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Hajkova, V
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Hollebon, P.
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Juha, L.
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Kasim, M. F.
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McBride, E. E.
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Muehlig, Kerstin
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Preston, T. R.
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Rackstraw, D. S.
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Roling, S.
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Toleikis, S.
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Wark, J. S.
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Zacharias, H.
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