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Establishing nonlin...
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Szlachetko, JakubPaul Scherrer Inst, Villigen, Switzerland.;Jan Kochanowski Univ Humanities & Sci, Inst Phys, Kielce, Poland.
(author)
Establishing nonlinearity thresholds with ultraintense X-ray pulses
- Article/chapterEnglish2016
Publisher, publication year, extent ...
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2016-09-13
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Springer Science and Business Media LLC,2016
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:uu-305459
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-305459URI
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https://doi.org/10.1038/srep33292DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
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X-ray techniques have evolved over decades to become highly refined tools for a broad range of investigations. Importantly, these approaches rely on X-ray measurements that depend linearly on the number of incident X-ray photons. The advent of X-ray free electron lasers (XFELs) is opening the ability to reach extremely high photon numbers within ultrashort X-ray pulse durations and is leading to a paradigm shift in our ability to explore nonlinear X-ray signals. However, the enormous increase in X-ray peak power is a double-edged sword with new and exciting methods being developed but at the same time well-established techniques proving unreliable. Consequently, accurate knowledge about the threshold for nonlinear X-ray signals is essential. Herein we report an X-ray spectroscopic study that reveals important details on the thresholds for nonlinear X-ray interactions. By varying both the incident X-ray intensity and photon energy, we establish the regimes at which the simplest nonlinear process, two-photon X-ray absorption (TPA), can be observed. From these measurements we can extract the probability of this process as a function of photon energy and confirm both the nature and sub-femtosecond lifetime of the virtual intermediate electronic state.
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Hoszowska, JoannaUniv Fribourg, Dept Phys, Fribourg, Switzerland.
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Dousse, Jean-ClaudeUniv Fribourg, Dept Phys, Fribourg, Switzerland.
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Nachtegaal, MaartenPaul Scherrer Inst, Villigen, Switzerland.
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Blachucki, WojciechUniv Fribourg, Dept Phys, Fribourg, Switzerland.
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Kayser, YvesPaul Scherrer Inst, Villigen, Switzerland.
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Sá, JacintoUppsala universitet,Fysikalisk kemi,Polish Acad Sci, Inst Phys Chem, Warsaw, Poland.(Swepub:uu)saaja288
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Messerschmidt, MarcSLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA USA.;NSF BioXFEL STC, 700 Ellicott St, Buffalo, NY 14203 USA.
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Boutet, SebastienSLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA USA.
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Williams, Garth J.SLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA USA.;Brookhaven Natl Lab, Upton, NY 11973 USA.
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David, ChristianPaul Scherrer Inst, Villigen, Switzerland.
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Smolentsev, GrigoryPaul Scherrer Inst, Villigen, Switzerland.
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van Bokhoven, Jeroen A.Paul Scherrer Inst, Villigen, Switzerland.;Swiss Fed Inst Technol, Inst Chem & Bioengn, Zurich, Switzerland.
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Patterson, Bruce D.Paul Scherrer Inst, Villigen, Switzerland.
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Penfold, Thomas J.Paul Scherrer Inst, Villigen, Switzerland.
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Knopp, GregorPaul Scherrer Inst, Villigen, Switzerland.
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Pajek, MarekJan Kochanowski Univ Humanities & Sci, Inst Phys, Kielce, Poland.
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Abela, RafaelPaul Scherrer Inst, Villigen, Switzerland.
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Milne, Christopher J.Paul Scherrer Inst, Villigen, Switzerland.
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Paul Scherrer Inst, Villigen, Switzerland.;Jan Kochanowski Univ Humanities & Sci, Inst Phys, Kielce, Poland.Univ Fribourg, Dept Phys, Fribourg, Switzerland.
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