Classical trajectories in polar-asymmetric laser fields: Synchronous THz and XUV emission.

ABSTRACT: The interaction of intense near- and mid-infrared laser pulses with rare gases has produced bursts of radiation with spectral content extending into the extreme ultraviolet and soft x-ray region of electromagnetic spectrum. On the other end of the spectrum, laser-driven gas plasmas has been shown to produce coherent sub-harmonic optical waveforms, covering from terahertz (THz) to mid- and near-infrared frequency spectral band. Both processes can be enhanced via a combination of a driving field and its second harmonic. Despite this striking similarity, only limited experimental and theoretical attempts have been made to address these two regimes simultaneously. Here we present systematic experiments and a unifying picture of these processes, based on our extension of the semi-classical thre

SUBMITTER: Gragossian A 

PROVIDER: S-EPMC5069465 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature