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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 2 — Feb. 10, 2009

Structure of confined fluids by x-ray interferometry using diffraction gratings

K. Nygård, D. K. Satapathy, O. Bunk, A. Diaz, E. Perret, J. Buitenhuis, F. Pfeiffer, C. David, and J. F. van der Veen  »View Author Affiliations


Optics Express, Vol. 16, Issue 25, pp. 20522-20529 (2008)
http://dx.doi.org/10.1364/OE.16.020522


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Abstract

We develop a novel method for structure determination of confined fluids using diffraction-grating-based x-ray interferometry. Within this approach, diffraction from a microfluidic array, which acts both as confinement and transmission diffraction grating, provides the reference wave, whereas the density modulations of the confined fluid, acting as a weak phase object, generate the object wave. The ensemble-averaged density profile of the fluid perpendicular to the confining channel is then unambiguously obtained from the interference between the reference and object waves by direct Fourier inversion.

© 2008 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(100.5070) Image processing : Phase retrieval
(340.7450) X-ray optics : X-ray interferometry

ToC Category:
Diffraction and Gratings

History
Original Manuscript: September 15, 2008
Revised Manuscript: October 28, 2008
Manuscript Accepted: November 24, 2008
Published: November 26, 2008

Virtual Issues
Vol. 4, Iss. 2 Virtual Journal for Biomedical Optics

Citation
K. Nygard, D. K. Satapathy, O. Bunk, A. Diaz, E. Perret, J. Buitenhuis, F. Pfeiffer, C. David, and F. van der Veen, "Structure of confined fluids by x-ray interferometry using diffraction gratings," Opt. Express 16, 20522-20529 (2008)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=oe-16-25-20522


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