224 citations · 891 across the 25 of their papers we have counts for
4 papers · 2 filters
Fully-tunable femtosecond laser source in the ultraviolet spectral range
B. Mahieu, S. Coraggia, C. Callegari +10
We demonstrate experimentally the full tunability of a coherent femtosecond source in the whole ultraviolet spectral region. The experiment relies on the technique of high-order ha…
VUV and X-ray coherent light with tunable polarization from single-pass free-electron lasers
C. Spezzani, E. Allaria, B. Diviacco +6
Tunable polarization over a wide spectral range is a required feature of light sources employed to investigate the properties of local symmetry in both condensed and low-density ma…
Experimental demonstration of frequency pulling in single-pass free-electron lasers
E. Allaria, C. Spezzani, G. De Ninno
Frequency pulling is a well-known phenomenon in standard laser physics, leading to a shift of the laser frequency when the cavity and maximum gain frequencies are detuned. In this…
Angular Distribution of Nonlinear Harmonic Generation in Helical Undulators: a comparison between experiments and theory
E. Allaria, G. De Ninno, G. Geloni +1
Using harmonic emission from circularly polarized undulator is a procedure that is normally employed on synchrotron beamlines in order to extend the covered spectral range. A simil…