Characterizing Few-Cycle Laser Fields in Space and Time
Hosted By: Short Wavelength Sources and Attosecond/High Field Physics Technical Group
11 August 2022, 11:00 - 12:00
- Eastern Daylight Time (UTC - 04:00)
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, Mike 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
About the Presenter: Michael Chini, University of Central Florida
Dr. Chini received his B.Sc. in Physics from McGill University in 2007 and his Ph.D. in Physics from the University of Central Florida in 2012. He became an Assistant Professor at UCF in 2015 and in 2020 an Associate Professor, and leads the Laboratory for Ultrafast Metrology and Attoscience in Solids (LUMAS).