Zone-Plate Based Nanospectroscopy with Soft X-Rays at the SLS |
| R.H. Fink, C. Hub and G. Tzvetkov
Department Chemie und Pharmazie, and Interdisciplinary Center for Molecular Materials (ICMM), Universität Erlangen-Nürnberg, Egerlandstr. 3, D-91058 Erlangen, Germany |
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| With the advance of nanostructuring techniques and the availability of third-generation synchrotron sources, Fresnel-type zone plate optics is widely used for nanospectroscopic investigations with resolutions of several 10 nm. Whereas hard X-rays commonly use diffraction or elemental contrast (e.g. using X-ray fluorescence), soft X-rays are favored to utilize the spectroscopic contrast in the near-edge region of the absorption edge. In particular, for soft materials, the relevant C-, N- and O 1s absorption edges show distinct resonances which allow fingerprint-type chemical identification, even in water surroundings. Few selected examples from modern material science will be discussed to demonstrate that the combination of X-ray absorption spectroscopy with high spatial resolution yields new insight into the nanoscale properties of these materials. |
| DOI: 10.12693/APhysPolA.115.462 PACS numbers: 68.37.Yz , 82.80.-d, 82.80.Ej, 07.85.Tt |