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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 7, Iss. 9 — Aug. 28, 2012

Compact x-ray microscope for the water window based on a high brightness laser plasma source

H. Legall, G. Blobel, H. Stiel, W. Sandner, C. Seim, P. Takman, D. H. Martz, M. Selin, U. Vogt, H. M. Hertz, D. Esser, H. Sipma, J. Luttmann, M. Höfer, H. D. Hoffmann, S. Yulin, T. Feigl, S. Rehbein, P. Guttmann, G. Schneider, U. Wiesemann, M. Wirtz, and W. Diete  »View Author Affiliations

Optics Express, Vol. 20, Issue 16, pp. 18362-18369 (2012)

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We present a laser plasma based x-ray microscope for the water window employing a high-average power laser system for plasma generation. At 90 W laser power a brightness of 7.4 x 1011 photons/(s x sr x μm2) was measured for the nitrogen Lyα line emission at 2.478 nm. Using a multilayer condenser mirror with 0.3 % reflectivity 106 photons/(μm2 x s) were obtained in the object plane. Microscopy performed at a laser power of 60 W resolves 40 nm lines with an exposure time of 60 s. The exposure time can be further reduced to 20 s by the use of new multilayer condenser optics and operating the laser at its full power of 130 W.

© 2012 OSA

OCIS Codes
(180.7460) Microscopy : X-ray microscopy
(340.7440) X-ray optics : X-ray imaging
(350.5400) Other areas of optics : Plasmas
(260.6048) Physical optics : Soft x-rays

ToC Category:

Original Manuscript: May 10, 2012
Revised Manuscript: June 28, 2012
Manuscript Accepted: June 28, 2012
Published: July 26, 2012

Virtual Issues
Vol. 7, Iss. 9 Virtual Journal for Biomedical Optics

H. Legall, G. Blobel, H. Stiel, W. Sandner, C. Seim, P. Takman, D. H. Martz, M. Selin, U. Vogt, H. M. Hertz, D. Esser, H. Sipma, J. Luttmann, M. Höfer, H. D. Hoffmann, S. Yulin, T. Feigl, S. Rehbein, P. Guttmann, G. Schneider, U. Wiesemann, M. Wirtz, and W. Diete, "Compact x-ray microscope for the water window based on a high brightness laser plasma source," Opt. Express 20, 18362-18369 (2012)

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