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Nanoscale spectroscopy with polarized X-rays by NEXAFS-TXM.
- Source :
-
Nature Photonics . Jan2012, Vol. 6 Issue 1, p25-29. 5p. 1 Color Photograph, 1 Diagram, 2 Graphs. - Publication Year :
- 2012
-
Abstract
- Near-edge X-ray absorption spectroscopy (NEXAFS) is an essential analytical tool in material science. Combining NEXAFS with scanning transmission X-ray microscopy (STXM) adds spatial resolution and the possibility to study individual nanostructures. Here, we describe a full-field transmission X-ray microscope (TXM) that generates high-resolution, large-area NEXAFS data with a collection rate two orders of magnitude faster than is possible with STXM. The TXM optical design combines a spectral resolution of E/?E = 1 × 104 with a spatial resolution of 25 nm in a field of view of 15-20 µm and a data acquisition time of ?1 s. As an example, we present image stacks and polarization-dependent NEXAFS spectra from individual anisotropic sodium and protonated titanate nanoribbons. Our NEXAFS-TXM technique has the advantage that one image stack visualizes a large number of nanostructures and therefore already contains statistical information. This new high-resolution NEXAFS-TXM technique opens the way to advanced nanoscale science studies. [ABSTRACT FROM AUTHOR]
- Subjects :
- *NANOSTRUCTURES
*PHOTONICS
*X-rays
*SPECTRUM analysis
*PHOTONS
Subjects
Details
- Language :
- English
- ISSN :
- 17494885
- Volume :
- 6
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Nature Photonics
- Publication Type :
- Academic Journal
- Accession number :
- 69919142
- Full Text :
- https://doi.org/10.1038/nphoton.2011.268