Ultrafast lasers reaching extremely high powers within short fractions of time enable a
plethora of applications. They grant advanced material processing capabilities, are effective …

The fundamental principles and experimental implementations of multipass cells used as a
platform for nonlinear optics are reviewed. Embedding a nonlinear medium in a multipass …

The pulse duration at the output of femtosecond lasers is usually close to the Fourier limit,
and can be shortened by increasing the spectral width. To this end, use is made of self …

We demonstrate terahertz (THz) generation using the tilted pulse front method in lithium
niobate, driven at an unprecedented high average power of more than 100 W and at a 13.3 …

Optical rectification of femtosecond laser pulses has emerged as the dominant technique for
generating single-and few-cycle terahertz (THz) pulses. The advent of the tilted pulse front …

Thin‐disk lasers (TDLs) are best known for their high‐power continuous‐wave industrial
applications. Nonetheless, the thin‐disk geometry is also highly attractive for ultrafast laser …

We present a high-energy laser source consisting of an ultrafast thin-disk amplifier followed
by a nonlinear compression stage. At a repetition rate of 5 kHz, the drive laser provides a …

Increasing the average power of broadband, few-cycle terahertz (THz) sources is currently a
topic of intense investigation, fueled by recent immense progress in high average power …

Ultrafast terahertz (THz) spectroscopy is a potent tool for studying the fundamental
properties of matter. Limitations of current THz sources, however, preclude the technique …

Metallic spintronic terahertz (THz) emitters have become well-established for offering ultra-
broadband, gapless THz emission in a variety of excitation regimes, in combination with …