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Characterizing Few-Cycle Laser Fields in Space and Time
Reliable and accurate techniques to measure ultrafast laser pulses have been key to advancing time-resolved measurements in atoms, molecules, and solids. For attosecond spectroscopy, however, measuring the laser intensity envelope and frequency chirp are no longer sufficient, as the electron dynamics are guided by the sub-cycle variations of the electric field. Worse yet, attosecond measurements are now being performed with terawatt- to petawatt-class lasers, which are known to suffer from spatiotemporal distortions, and with spatially-structured "vector" and "vortex" beams.

In this webinar hosted by the Short Wavelength Sources and Attosecond/High Field Physics Technical Group, Michael Chini will present his group’s progress in completely characterizing – in space and time – the electric field waveforms of few-cycle laser pulses. By spatially resolving electronic and/or optical signals driven by few-cycle laser pulses in the multiphoton and tunneling regimes, they demonstrate single-shot measurement of optical waveforms undergoing dynamical wavefront rotation as well as the characterization of structured light fields. As an example of the utility of such measurements, they apply waveform sampling to interpret the results of high-order harmonic measurements in solids.

Subject Matter Level:
• Intermediate - Assumes basic knowledge of the topic

What You Will Learn:
• How field sampling provides attosecond resolution in optical measurements
• How solid-state platforms can be leveraged to provide new functionality in the strong-field regime
• How field sampling can be leveraged to interpret the results of strong-field experiments

Who Should Attend:
• Researchers in attosecond science
• Researchers and industry experts in ultrafast laser metrology
• Anyone who wants an extremely cheap and easy way to characterize mid-infrared laser pulses

Aug 11, 2022 11:00 AM in Eastern Time (US and Canada)

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