Chemical Contrast in Soft X-Ray Ptychography

Mike Beckers, Tobias Senkbeil, Thomas Gorniak, Michael Reese, Klaus Giewekemeyer, Sophie-Charlotte Gleber, Tim Salditt, and Axel Rosenhahn
Phys. Rev. Lett. 107, 208101 – Published 8 November 2011

Abstract

The unique strengths of x-ray microscopy are high penetration depth and near-edge resonances that provide chemical information. We use ptychography, a coherent diffractive imaging technique that disposes of the requirement for isolated specimens, and demonstrate resonant imaging by exploiting resonances near the oxygen K edge to differentiate between two oxygen-containing materials. To highlight a biological system where resonant ptychography might be used for chemical mapping of unsliced cells, reconstructions of freeze-dried Deinococcus radiodurans cells at an energy of 517 eV are shown.

  • Figure
  • Figure
  • Figure
  • Received 25 May 2011

DOI:https://doi.org/10.1103/PhysRevLett.107.208101

© 2011 American Physical Society

Authors & Affiliations

Mike Beckers1,*, Tobias Senkbeil1, Thomas Gorniak1, Michael Reese2, Klaus Giewekemeyer3, Sophie-Charlotte Gleber4, Tim Salditt3, and Axel Rosenhahn1,5,†

  • 1Applied Physical Chemistry, Ruprecht-Karls-University Heidelberg, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany
  • 2Laser-Laboratorium Göttingen, Hans-Adolf-Krebs-Weg 1, 37077 Göttingen, Germany
  • 3Institute for X-Ray Physics, Georg-August-University Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen
  • 4X-Ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne Illinois 60439, USA
  • 5Institute of Functional Interfaces, IFG, Karlsruhe Institute of Technology, PO Box 3640, 76021 Karlsruhe, Germany

  • *beckers@uni-heidelberg.de
  • rosenhahn@uni-heidelberg.de

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 107, Iss. 20 — 11 November 2011

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×