Electro-Optic Imaging of Terahertz Vector Fields

This work introduces a detection scheme enabling time-resolved, mapping of transverse terahertz vector fields with only two camera exposures. By combining a circularly polarized probe pulse, a zinc-blende crystal, and a polarization-sensitive camera, we capture the instantaneous amplitude and orientation of the field. As a demonstration, we resolve the vector fields of linear, circular and cylindrical vector beams directly in the time domain. This approach establishes a new framework for investigating spin-orbit interactions and structured light in the terahertz regime.