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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 11, Iss. 19 — Sep. 22, 2003
  • pp: 2278–2288

Diffractive optical elements for differential interference contrast x-ray microscopy

Enzo Di Fabrizio, Dan Cojoc, Stefano Cabrini, Burkhard Kaulich, Jean Susini, Paolo Facci, and Thomas Wilhein  »View Author Affiliations


Optics Express, Vol. 11, Issue 19, pp. 2278-2288 (2003)
http://dx.doi.org/10.1364/OE.11.002278


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Abstract

In this paper we introduce phase diffractive optical elements (DOEs) that beside simple focusing, can perform new optical functions in the range of x-rays. In particular, the intensity of the wavefront can be distributed with almost complete freedom. We calculated and fabricated high resolution DOEs that can focus a monochromatic x-ray beam into multiple spots displaced in a single or two planes along the optical axis or can shape the beam into a desired continuous geometrical pattern. The possibility to introduce a specified phase shift between the generated spots, which can increase the image contrast, is demonstrated by preliminary results obtained from computer simulations and experiments performed in visible light. The functionality of the DOEs has been tested successfully in full-field differential interference contrast (DIC) x-ray microscopy at the ID21 beamline of the European Synchrotron Radiation Facility (ESRF) operated at 4 keV photon energy.

© 2003 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(090.1970) Holography : Diffractive optics
(180.0180) Microscopy : Microscopy
(180.7460) Microscopy : X-ray microscopy
(340.7460) X-ray optics : X-ray microscopy

ToC Category:
Focus Issue: Coherent x-ray optics

History
Original Manuscript: August 4, 2003
Revised Manuscript: September 12, 2003
Published: September 22, 2003

Citation
Enzo Di Fabrizio, Dan Cojoc, Stefano Cabrini, Burkhard Kaulich, Jean Susini, Paolo Facci, and Thomas Wilhein, "Diffractive optical elements for differential interference contrast x-ray microscopy," Opt. Express 11, 2278-2288 (2003)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-11-19-2278


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