<div class="csl-bib-body">
<div class="csl-entry">Popmintchev, D., Galloway, B., Chen, M.-C., Dollar, F., Mancuso, C., Hankla, A. (Lia), Miaja Avila, L., O’Neil, G., Shaw, J. M., Fan, G., Alisauskas, S., Andriukaitis, G., Balciunas, T., Mücke, O. D., Pugzlys, A., Baltuska, A., Kapteyn, H., Popmintchev, T., & Murnane, M. M. (2018). Near- and Extended-Edge X-Ray-Absorption Fine-Structure Spectroscopy Using Ultrafast Coherent High-Order Harmonic Supercontinua. <i>Physical Review Letters</i>, <i>120</i>(9), 093002. https://doi.org/10.1103/PhysRevLett.120.093002</div>
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dc.identifier.issn
0031-9007
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/17936
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dc.description.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.
en
dc.language.iso
en
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dc.publisher
AMER PHYSICAL SOC
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dc.relation.ispartof
Physical Review Letters
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dc.rights.uri
http://rightsstatements.org/vocab/InC/1.0/
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dc.subject
high-order harmonic generation
en
dc.subject
laser spectroscopy
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dc.subject
X-ray beams & optics
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dc.title
Near- and Extended-Edge X-Ray-Absorption Fine-Structure Spectroscopy Using Ultrafast Coherent High-Order Harmonic Supercontinua