Toward time-resolved soft X-ray microscopy using pulsed fs-high-harmonic radiation.
Coherent soft X-ray sources open the way to new capabilities in high-resolution imaging, site- and element-specific spectroscopy and biomicroscopy. In this paper we demonstrate imaging with a table-top soft X-ray microscope. By combining a laser driven high-harmonic light source, optimized for having the maximum brightness at around 100 eV, a pair of multilayer mirrors to select a narrow spectral band and acting simultaneously as a condenser and a Fresnel zone plate as microscope objective, we were able to resolve 200 nm structures of a diatom sample. Further, the pulsed nature of our X-ray source offers the possibility of time-resolved spectromicroscopy with a temporal resolution in the order of a few femtoseconds.
Wieland
M
M
RheinAhrCampus, University of Applied Sciences, Suedallee 2, 53424 Remagen, Germany. wieland@rheinahrcampus.de
Spielmann
Ch
Ch
Kleineberg
U
U
Westerwalbesloh
Th
T
Heinzmann
U
U
Wilhein
T
T
D000818:Animals; D003952:Diagnostic Imaging / Q000295:instrumentation*; D017377:Diatoms / Q000648:ultrastructure; D008853:Microscopy / Q000295:instrumentation*; D055095:Optics and Photonics; D014965:X-Rays