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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 36, Iss. 12 — Jun. 15, 2011
  • pp: 2209–2211

X-ray spatial harmonic imaging of phase objects

Yanan Liu, Brian Ahr, Alexander Linkin, Gerald J. Diebold, and Christoph Rose-Petruck  »View Author Affiliations


Optics Letters, Vol. 36, Issue 12, pp. 2209-2211 (2011)
http://dx.doi.org/10.1364/OL.36.002209


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Abstract

Refractive index gradients in materials or at material interfaces lead to x-ray diffraction. Interference of this radiation with adjacent x-ray waves causes phase contrast that can be used for imaging purposes if an x-ray source with sufficient spatial coherence is used. The imaging modality presented here uses hard x radiation diffracted at interfaces, but requires only little spatial coherence. We report experiments showing, first, that image contrast is not diminished by motional blurring, and second, that contrast can be increased by orders of magnitude relative to in-line x-ray phase-contrast imaging. These properties substantially broaden the applicability of phase-sensitive imaging to moving samples and very weak density gradients.

© 2011 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(340.7440) X-ray optics : X-ray imaging
(340.7450) X-ray optics : X-ray interferometry

ToC Category:
X-ray Optics

History
Original Manuscript: February 24, 2011
Revised Manuscript: April 28, 2011
Manuscript Accepted: May 11, 2011
Published: June 7, 2011

Citation
Yanan Liu, Brian Ahr, Alexander Linkin, Gerald J. Diebold, and Christoph Rose-Petruck, "X-ray spatial harmonic imaging of phase objects," Opt. Lett. 36, 2209-2211 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-12-2209


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