In this paper, we characterize the polarization of the FEL emission as a function of the undulator phase, and we demonstrate the possibility to generate FEL light with arbitrary polarization.
COBISS.SI-ID: vpis v por
Frequency pulling is a well-known phenomenon leading to an output wavelength shift in a conventional laser, when the cavity and the maximum gain frequencies are detuned. We demonstrate experimentally that a similar mechanism is at play in a seeded free-electron laser.
COBISS.SI-ID: še ni vpis
We report results, which demonstrate that the light generated by the FERMI@Elettra free-electron laser is characterized by fully tunable polarization.
COBISS.SI-ID: še ni v CO