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Pulse-to-pulse wavefront sensing at free-electron lasers using ptychography

Sala, Simone (author)
UCL, Dept Phys & Astron, London, England.;Univ Southampton, Dept Phys & Astron, Southampton, Hants, England.;Lund Univ, Max IV Lab, Lund, Sweden.
Daurer, Benedikt J. (author)
Uppsala universitet,Molekylär biofysik
Odstrcil, Michal (author)
Paul Scherrer Inst, Villigen, Switzerland.
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Capotondi, Flavio (author)
Elettra Sincrotrone Trieste, Trieste, Italy.
Pedersoli, Emanuele (author)
Elettra Sincrotrone Trieste, Trieste, Italy.
Hantke, Max F. (author)
Univ Oxford, Dept Chem, Oxford, England.
Manfredda, Michele (author)
Elettra Sincrotrone Trieste, Trieste, Italy.
Loh, N. Duane (author)
Natl Univ Singapore, Dept Biol Sci, Singapore, Singapore.;Natl Univ Singapore, Dept Phys, Singapore, Singapore.
Thibault, Pierre (author)
Univ Southampton, Dept Phys & Astron, Southampton, Hants, England.
Maia, Filipe R.N.C. (author)
Uppsala universitet,Molekylär biofysik
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UCL, Dept Phys & Astron, London, England;Univ Southampton, Dept Phys & Astron, Southampton, Hants, England.;Lund Univ, Max IV Lab, Lund, Sweden. Molekylär biofysik (creator_code:org_t)
INT UNION CRYSTALLOGRAPHY, 2020
2020
English.
In: Journal of applied crystallography. - : INT UNION CRYSTALLOGRAPHY. - 0021-8898 .- 1600-5767. ; 53, s. 949-956
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The pressing need for knowledge of the detailed wavefront properties of ultra-bright and ultra-short pulses produced by free-electron lasers has spurred the development of several complementary characterization approaches. Here a method based on ptychography is presented that can retrieve high-resolution complex-valued wavefunctions of individual pulses without strong constraints on the illumination or sample object used. The technique is demonstrated within experimental conditions suited for diffraction experiments and exploiting Kirkpatrick-Baez focusing optics. This lensless technique, applicable to many other short-pulse instruments, can achieve diffraction-limited resolution.

Subject headings

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

Keyword

ptychography
X-ray free-electron lasers
XFELs
wavefronts
ultra-short pulses

Publication and Content Type

ref (subject category)
art (subject category)

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