Contribution to a book

We demonstrate efficient post compression of 9.45 mJ, 1.2 ps pulses to 13 fs at 1 kHz repetition rate using a two stage gas filled multi pass cell system reaching near terawatt peak power..

Multi-pass cells (MPCs) enable the accumulation of a large amount of B-integral while preserving the spatial mode of a laser beam and ensuring a uniform spectral distribution [1], [2]. In addition, MPCs used for post-compression allow achieving very large compression factors, without considerable degradation in temporal quality [3]. [...]

John Fleming demonstrated in 1905 the first vacuum diode based on thermionic electron emission for the rectification of AC electric fields and started an avalanche of developments in microwave electronics such as sensitive wireless receivers or signal amplifiers [1]. Around 100 years later, lasers connected the optical domain with the microwave domain by coherently locking optical frequencies to microwave frequencies with carrier-envelope (CE) offset stable frequency combs, enabling many applications such as precision metrology [2]. [...]

We report single-shot detection of the carrier-envelope phase of few-cycle mid-infrared waveforms using petahertz electronic networks. Leveraging large-area networks, we demonstrate a charge amplitude of 2,500 electrons per shot, enabling the detection at the full laser repetition rate of 50 kHz [...]

INFN LASA photocathode lab develops and produces films that are used in high brightness photoinjectors. Be-sides the long-time and still on-going experience on Cs$_2$Te, recently we have restarted an activity on alkali-antimonide films, sensitive to visible light, exploring the possibility of their stable operation in CW machines. [...]

An R&D platform for electron FLASH radiation therapy and radiation biology is being prepared at the Photo Injector Test facility at DESY in Zeuthen (FLASHlab@PITZ). This platform is based on the unique beam parameters available at PITZ: ps scale electron bunches of up to 22 MeV with up to 5 nC bunch charge at MHz bunch repetition rate in bunch trains of up to 1 ms in length repeating at 1 to 10 Hz. [...]

Functional composites are ubiquitous in technology. They allow to simultaneously optimize functional properties against multiple application demands by combining several phases, each contributing desired functions [...]

Tunable high-harmonic continua in the water window spectral region are generatedin helium using sub-cycle infrared waveforms from a parametric waveform synthesizer.Yield enhancement is observed with specific driving waveforms..