Experimental setups for FEL-based four-wave mixing experiments at FERMI
The recent advent of free-electron laser (FEL) sources is driving the scientific community to extend table-top laser research to shorter wavelengths adding elemental selectivity and chemical state specificity. Both a compact setup (mini-TIMER) and a separate instrument (EIS-TIMER) dedicated to four-...
Publié dans: | Journal of synchrotron radiation. - 1994. - 23(2016), 1 vom: 25. Jan., Seite 132-40 |
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Auteur principal: | |
Autres auteurs: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article en ligne |
Langue: | English |
Publié: |
2016
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Accès à la collection: | Journal of synchrotron radiation |
Sujets: | Journal Article Research Support, Non-U.S. Gov't four-wave-mixing free-electron lasers non-linear optics transient grating |
Résumé: | The recent advent of free-electron laser (FEL) sources is driving the scientific community to extend table-top laser research to shorter wavelengths adding elemental selectivity and chemical state specificity. Both a compact setup (mini-TIMER) and a separate instrument (EIS-TIMER) dedicated to four-wave-mixing (FWM) experiments has been designed and constructed, to be operated as a branch of the Elastic and Inelastic Scattering beamline: EIS. The FWM experiments that are planned at EIS-TIMER are based on the transient grating approach, where two crossed FEL pulses create a controlled modulation of the sample excitations while a third time-delayed pulse is used to monitor the dynamics of the excited state. This manuscript describes such experimental facilities, showing the preliminary results of the commissioning of the EIS-TIMER beamline, and discusses original experimental strategies being developed to study the dynamics of matter at the fs-nm time-length scales. In the near future such experimental tools will allow more sophisticated FEL-based FWM applications, that also include the use of multiple and multi-color FEL pulses |
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Description: | Date Completed 20.04.2016 Date Revised 24.12.2015 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
ISSN: | 1600-5775 |
DOI: | 10.1107/S1600577515021104 |