Title |
Near- and Extended-Edge X-Ray-Absorption Fine-Structure Spectroscopy Using Ultrafast Coherent High-Order Harmonic Supercontinua
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Published in |
Physical Review Letters, March 2018
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DOI | 10.1103/physrevlett.120.093002 |
Pubmed ID | |
Authors |
Dimitar Popmintchev, Benjamin R. Galloway, Ming-Chang Chen, Franklin Dollar, Christopher A. Mancuso, Amelia Hankla, Luis Miaja-Avila, Galen O’Neil, Justin M. Shaw, Guangyu Fan, Skirmantas Ališauskas, Giedrius Andriukaitis, Tadas Balčiunas, Oliver D. Mücke, Audrius Pugzlys, Andrius Baltuška, Henry C. Kapteyn, Tenio Popmintchev, Margaret M. Murnane |
Abstract |
Recent advances in high-order harmonic generation have made it possible to use a tabletop-scale setup to produce spatially and temporally coherent beams of light with bandwidth spanning 12 octaves, from the ultraviolet up to x-ray photon energies >1.6 keV. Here we demonstrate the use of this light for x-ray-absorption spectroscopy at the K- and L-absorption edges of solids at photon energies near 1 keV. We also report x-ray-absorption spectroscopy in the water window spectral region (284-543 eV) using a high flux high-order harmonic generation x-ray supercontinuum with 10^{9} photons/s in 1% bandwidth, 3 orders of magnitude larger than has previously been possible using tabletop sources. Since this x-ray radiation emerges as a single attosecond-to-femtosecond pulse with peak brightness exceeding 10^{26} photons/s/mrad^{2}/mm^{2}/1% bandwidth, these novel coherent x-ray sources are ideal for probing the fastest molecular and materials processes on femtosecond-to-attosecond time scales and picometer length scales. |
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Spain | 1 | 6% |
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Mendeley readers
Geographical breakdown
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Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 58 | 31% |
Researcher | 46 | 24% |
Student > Doctoral Student | 14 | 7% |
Student > Master | 14 | 7% |
Professor | 7 | 4% |
Other | 22 | 12% |
Unknown | 29 | 15% |
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Chemistry | 21 | 11% |
Materials Science | 8 | 4% |
Engineering | 2 | 1% |
Medicine and Dentistry | 2 | 1% |
Other | 4 | 2% |
Unknown | 38 | 20% |