Simple single-shot complete spatiotemporal characterization of the intensity and phase of a complex ultrashort pulse

Abstract

We demonstrate a simple single-shot device, called Spatially and Temporally Resolved Intensity and Phase Evaluation Device: Full Information from a Single Hologram (STRIPED FISH), for completely characterizing the intensity and phase of an arbitrary ultrashort pulse in space and time (<i>x,y,t</i>). Improvements are made on the measurable bandwidth, aberrations eliminations, and the intensity uniformity of the multiple holograms in our device. To demonstrate the capability, we perform single-camera-frame measurements of spatiotemporally complex subpicosecond crossed and chirped double pulses from a Ti:Sapphire oscillator. To display the resulting four-dimensional intensity-and-phase data, we generate intuitive movies of the measured pulses based on our newly-developed method.