Every single-shot CEP drift detection for near-infrared lasers with a modified TOUCAN method
2021
Since the discovery of attosecond pulses, experiments became possible in material physics at an attosecond timescale [1] , [2] relying on attosecond XUV sources. An ever-increasing number of these experiments are performed at high repetition rate [2] to reduce the acquisition time and improve the signal-to-noise ratio. These experiments require few-cycle driving pulses with either a stabilized carrier envelope phase (CEP) or a pulse tagging strategy [1] . In both cases, the CEP determination is needed on a single shot basis irrespective of the system repetition rate. To this aim, the TOUCAN (Temporal dispersion based One-shot Ultrafast Carrier envelope phase ANalysis) method was developed [3] , which has the potential for every single-shot CEP drift measurement even at MHz repetition rate and low intensities.
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