Regensburg 2013 – wissenschaftliches Programm
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MI: Fachverband Mikrosonden
MI 9: Poster: Microanalysis and Microscopy
MI 9.1: Poster
Mittwoch, 13. März 2013, 15:00–17:00, Poster B2
A new soft X-ray microscopy endstation for time-resolved experiments at PETRA III — •Philipp Wessels1, Moritz Schlie1, Marek Wieland1, Johannes Ewald2, Gennaro Abbati2, Stefan Baumbach2, Johannes Overbuschmann2, Thomas Nisius2, Jens Viefhaus3, Thomas Wilhein2, and Markus Drescher1 — 1Institute for Experimental Physics, University of Hamburg, Germany — 2Institute for X-Optics, RheinAhrCampus Remagen, Germany — 3Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
We present first results of a new full-field transmission microscope for the soft X-ray beamline P04 at the high brilliance synchrotron radiation source PETRA III. A flat-top illumination field of 20 µm diameter is generated by a grating condenser and the sample plane is imaged by a micro zone plate with outermost zone width of 50 nm. The microscope is built into a mobile endstation vacuum system with in-house developed encoded three-axis piezo motorized stages for high accuracy positioning of all microscopy-components inside the chambers. In the first images a resolution of 70 nm was achieved.
For future applications, the microscope can be equipped with a mobile synchronized femtosecond laser system to perform time-resolved pump-probe experiments for example on magnetic nanostructures via X-ray magnetic circular dichroism (XMCD) spectro-microscopy with a time-resolution limited only by the PETRA III pulse duration of 44 ps root mean square.