Features of the formation of a femtosecond Bessel beam by using an axicon

The dynamics of the envelope of a pulsed light beam with the transverse field profile described by the Bessel function is studied theoretically and experimentally. The beam is formed by an axicon from a pulse with the Gaussian spatiotemporal envelope. The appearance of a satellite pulse behind the axicon is predicted. The possibility of generating pulsed Bessel light beams with the required diameter and intensity of the central maximum in optical schemes containing an axicon and a lens is shown.