title: 2D measurement and spatio-temporal coupling of few-cycle THz pulses.
abstract: The propagation of few-cycle THz pulses are measured by the improved CCD based 2D THz imaging system. There exists strong spatio-temporal shaping effect, leading to dramatically time dependent beam diameter and wave front. Theoretical simulation is given.
authors.forename: Z
authors.initials: Z
authors.lastname: Jiang
authors.forename: X C
authors.initials: XC
authors.lastname: Zhang