3 May 2013 Four wave mixing using coherent FEL radiation
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The development of Free Electron Laser sources is opening up the possibility to probe dynamics at the femtosecondnanometer time-length scales. A remarkable step forward towards this goal would be achieved by extending the Four Wave Mixing (FWM) approach at VUV/soft x-ray wavelengths. FWM-based techniques allow a coherent control in both the stimulating and probing processes of photon-induced excitations. We propose to exploit the FERMI@Elettra seeded Free Electron Laser (FEL) source to put on practice the VUV/soft x-ray FWM approach, yet theoretically conceived one decade ago. Moreover, the exploitation of VUV/soft x-ray wavelengths allows adding site-sensitivity to FWM methods by exploiting core resonances of selected elements in the sample.
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F. Bencivenga, F. Bencivenga, L. Raimondi, L. Raimondi, C. Svetina, C. Svetina, C. Masciovecchio, C. Masciovecchio, "Four wave mixing using coherent FEL radiation", Proc. SPIE 8778, Advances in X-ray Free-Electron Lasers II: Instrumentation, 877807 (3 May 2013); doi: 10.1117/12.2021806; https://doi.org/10.1117/12.2021806

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