Simultaneous multiple holograms measure the complete spatio-temporal light electro-magnetic field on a single shot.

A schematic of the multiple holograms (each of a different color) that are measured in the technique called STRIPED FISH, which measures the complete spatio-temporal intensity and phase of a single pulse.  It was developed by grad student, Pablo Gabolde, in the Trebino group.  You can read more about it in the tutorial or in one of several papers that resulted from this productive effort.