Simple Single-shot Complete Spatiotemporal Characterization of the Intensity and Phase of a Complex Ultrashort Pulse

摘要

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 (x,y,t). 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.