Spatially Resolved Characterization of Sub-4-fs Laser Pulses Using Spectral Shearing Interferometry

摘要

We report on the spatially resolved full amplitude and phase characterization of high intensity few-cycle laser pulses. The sub-4-fs pulses are generated in a single stage hollow core fiber system with subsequent compression by ultrabroadband chirped mirrors. We use a spatially-encoded arrangement(SEA-)SPIDER with spectral filters for ancilla generation to fully characterize the sub-4-fs pulses with spatial resolution in a single shot.