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Ultrafast switching of hard X-rays
- A new concept for shortening hard X-ray pulses emitted from a third-generation synchrotron source down to few picoseconds is presented. The device, called the PicoSwitch, exploits the dynamics of coherent acoustic phonons in a photo-excited thin film. A characterization of the structure demonstrates switching times of <= 5 ps and a peak reflectivity of similar to 10(-3). The device is tested in a real synchrotron-based pump-probe experiment and reveals features of coherent phonon propagation in a second thin film sample, thus demonstrating the potential to significantly improve the temporal resolution at existing synchrotron facilities.
Author details: | Peter Gaal, Daniel Schick, Marc HerzogORCiDGND, Andre BojahrGND, Roman Shayduk, Jevgeni Goldshteyn, Wolfram LeitenbergerGND, Ionela Vrejoiu, Dmitry Khakhulin, Michael Wulff, Matias BargheerORCiDGND |
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DOI: | https://doi.org/10.1107/S1600577513031949 |
ISSN: | 0909-0495 |
ISSN: | 1600-5775 |
Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/24562559 |
Title of parent work (English): | Journal of synchrotron radiation |
Publisher: | Wiley-Blackwell |
Place of publishing: | Hoboken |
Publication type: | Article |
Language: | English |
Year of first publication: | 2014 |
Publication year: | 2014 |
Release date: | 2017/03/27 |
Tag: | X-ray switching; coherent phonons; optical pump X-ray probe; pulse shortening; thin film; time-resolved; ultrafast X-ray diffraction |
Volume: | 21 |
Number of pages: | 6 |
First page: | 380 |
Last Page: | 385 |
Funding institution: | BMBF [05K10IP1] |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
Peer review: | Referiert |