The fully coherent free electron laser FERMI paves the way to control ultrafast electron motion.

Fig.1 Representation of the phase scan of the first and second harmonics. Lower panel: electric fields of the individual harmonics; upper panel: the sum of the electric field vectors.	Fig.2 Schematic representation of the emission intensity of an p + d wave as the phase is scanned. The lobes represent the direction and intensity of emission.

Reference: K. C. Prince, E. Allaria, C. Callegari, R. Cucini, G. De Ninno, S. Di Mitri, B. Diviacco, E. Ferrari, P. Finetti, D. Gauthier, L. Giannessi, N. Mahne, G. Penco, O. Plekan, L. Raimondi, P. Rebernik, E. Roussel, C. Svetina, M. Trovò, M. Zangrando, M. Negro, P. Carpeggiani, M. Reduzzi, G. Sansone, A. N. Grum-Grzhimailo, E.V. Gryzlova, S.I. Strakhova, K. Bartschat, N. Douguet, J. Venzke, D. Iablonskyi, Y. Kumagai, T. Takanashi, K. Ueda, A. Fischer, M. Coreno, F. Stienkemeier, E.Ovcharenko, T. Mazza, M. Meyer, “Coherent control with a short-wavelength Free Electron Laser” Nature Photonics (2016), published online 22nd January. DOI:10.1038/NPHOTON.2016.13

 Coherent control – MEDEA

Direct link to the article: http://www.nature.com/nphoton/journal/v10/n3/abs/nphoton.2016.13.html

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