Session UP1 - Poster Session.
POSTER session, Friday morning, November 19
Grand III, The Westin Seattle
The classical theory of Compton backscattering is considered at relativistic intensities, where the normalized transverse four-potential of the incident laser pulse exceeds unity. In this regime, the radiation pressure dominates the electron dynamics, and yields nonlinear Doppler shifts resulting in the radiation of multiple Compton backscattered lines. It is shown that for incident laser pulses with the appropriate quadratic chirp, this effect can be completely alleviated, thus yielding spectrally filtered, narrow line, ultrahigh-intensity Compton backscattering. The method of chirped pulse Compton backscattering may also be used to generate high frequency radiation with custom pulse shapes.