Seminarium Optyczne

A comprehensive theoretical treatment of laser-assisted radiative recombination in the presence of alaser pulse or a pulse train is presented. Our formulation lacks in various unphysical effects likeoscillations and high-energy tails in the spectrum of emitted radiation. On contrary, it accounts for acontribution from the field-free process. As a result, the energy distribution of emitted radiationconsists of a point spectrum embedded in a continuum. We demonstrate that the features of thelatter are determined by the laser field. For instance, in the case of a train of pulses there appear thecomb structures in the radiation spectrum. We attribute them to constructive interference betweenprobability amplitudes of recombination assisted by each pulse from the train. Finally, we show thatthe vector potential describing the laser field is encoded in the spectrogram of emitted radiation.This suggests to use the spectrogram for a complete temporal reconstruction of the laser field,which is irrespective of whether it is an isolated pulse or a pulse train.

Seminarium z użyciem połączenia internetowegohttps://zoom.us/j/97696726563(meeting ID: ID 97696726563, password: 314297)