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Sökning: WFRF:(Pajek Marek) > (2016) > Establishing nonlin...

Establishing nonlinearity thresholds with ultraintense X-ray pulses

Szlachetko, Jakub (författare)
Paul Scherrer Inst, Villigen, Switzerland.;Jan Kochanowski Univ Humanities & Sci, Inst Phys, Kielce, Poland.
Hoszowska, Joanna (författare)
Univ Fribourg, Dept Phys, Fribourg, Switzerland.
Dousse, Jean-Claude (författare)
Univ Fribourg, Dept Phys, Fribourg, Switzerland.
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Nachtegaal, Maarten (författare)
Paul Scherrer Inst, Villigen, Switzerland.
Blachucki, Wojciech (författare)
Univ Fribourg, Dept Phys, Fribourg, Switzerland.
Kayser, Yves (författare)
Paul Scherrer Inst, Villigen, Switzerland.
Sá, Jacinto (författare)
Uppsala universitet,Fysikalisk kemi,Polish Acad Sci, Inst Phys Chem, Warsaw, Poland.
Messerschmidt, Marc (författare)
SLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA USA.;NSF BioXFEL STC, 700 Ellicott St, Buffalo, NY 14203 USA.
Boutet, Sebastien (författare)
SLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA USA.
Williams, Garth J. (författare)
SLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA USA.;Brookhaven Natl Lab, Upton, NY 11973 USA.
David, Christian (författare)
Paul Scherrer Inst, Villigen, Switzerland.
Smolentsev, Grigory (författare)
Paul Scherrer Inst, Villigen, Switzerland.
van Bokhoven, Jeroen A. (författare)
Paul Scherrer Inst, Villigen, Switzerland.;Swiss Fed Inst Technol, Inst Chem & Bioengn, Zurich, Switzerland.
Patterson, Bruce D. (författare)
Paul Scherrer Inst, Villigen, Switzerland.
Penfold, Thomas J. (författare)
Paul Scherrer Inst, Villigen, Switzerland.
Knopp, Gregor (författare)
Paul Scherrer Inst, Villigen, Switzerland.
Pajek, Marek (författare)
Jan Kochanowski Univ Humanities & Sci, Inst Phys, Kielce, Poland.
Abela, Rafael (författare)
Paul Scherrer Inst, Villigen, Switzerland.
Milne, Christopher J. (författare)
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. (creator_code:org_t)
2016-09-13
2016
Engelska.
Ingår i: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 6
Relaterad länk:
https://uu.diva-port... (primary) (Raw object)
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https://www.nature.c...
https://urn.kb.se/re...
https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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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.

Ämnesord

NATURVETENSKAP  -- Kemi -- Fysikalisk kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Physical Chemistry (hsv//eng)

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