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Spatial coherence properties of a compact and ultrafast laser-produced plasma keV x-ray source

Appl. Phys. Lett. 90, 011106 (2007); doi:10.1063/1.2426941

Published 3 January 2007

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D. Boschetto, G. Mourou, and A. Rousse
Laboratoire d'Optique Appliquée, ENSTA-Ecole Polytechnique, Chemin de la Hunière, 91761 Palaiseau, France

A. Mordovanakis, Bixue Hou, and J. Nees
FOCUS Center, University of Michigan, 2200 Banisteel Boulevard, Ann Arbor, Michigan 48109-2099 and Center for Ultrafast Optical Science, University of Michigan, 2200 Bonisteel Boulevard, Ann Arbor, Michigan 48109-2099

D. Kumah and R. Clarke
Applied Physics Program, University of Michigan, Ann Arbor, Michigan 48109-1040
The authors use Fresnel diffraction from knife-edges to demonstrate the spatial coherence of a tabletop ultrafast x-ray source produced by laser-plasma interaction. Spatial coherence is achieved in the far field by producing micrometer-scale x-ray spot dimensions. The results show an x-ray source size of 6  µm that leads to a transversal coherence length of 20  µm at a distance of 60  cm from the source. Moreover, they show that the source size is limited by the spatial spread of the absorbed laser energy. ©2007 American Institute of Physics
History: Received 9 August 2006; accepted 29 November 2006; published 3 January 2007
Permalink: http://link.aip.org/link/?APPLAB/90/011106/1
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KEYWORDS and PACS

Keywords
PACS
  • 52.50.Jm
    Plasma production and heating by laser beams including laser–foil, laser–cluster, etc
  • 52.25.Os
    Emission, absorption, and scattering of electromagnetic radiation from plasmas
  • 52.38.Dx
    Laser light absorption in plasmas including collisional, parametric, etc
  • 07.85.Fv
    X- and gamma-ray sources, mirrors, gratings, and detectors
  • 42.65.Re
    Ultrafast processes; optical pulse generation and pulse compression
  • YEAR: 2007

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
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REFERENCES (10)
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