Ferenc Krausz

TL;DR: Self-focusing in conjunction with an intracavity aperture creates a power-dependent amplitude modulation in laser oscillators, which allows passive mode locking, and design issues for this mode-locking technique are discussed.

TL;DR: In this paper, the requirements for stable ultrashort pulse generation in these novel femtosecond sources are addressed and theoretical considerations are backed up by experimental results obtained with a number of different laser systems.

TL;DR: In this article, the authors demonstrate a laser wakefield accelerator with a novel electron injection scheme resulting in enhanced stability, reproducibility, and ease of use, which can be easily adapted to different laser parameters and should therefore allow scaling to the energy range of several hundred MeV.

TL;DR: This report on progress presents a comprehensive experimental and theoretical overview of physics that takes place when short and intense laser pulses interact with nanosystems, such as metallic and dielectric nanostructures, and elucidate how the spatially inhomogeneous laser induced fields at a nanometer scale modify the laser-driven electron dynamics.

TL;DR: This work establishes a theoretical framework for the accurate temporal characterization of attosecond XUV pulses and reveals an improved scheme that allows for direct experimental discrimination between single and multipleattosecond pulses.