Extreme ultraviolet microscopy and wavefront sensing are key elements for next-generation
ultrafast applications, such as chemically-resolved imaging, focal spot diagnostics in pump …

Existing for almost four decades, liquid crystal on Silicon (LCOS) technology is rapidly
growing into photonic applications. We review the basics of the technology, from the wafer to …

Experimental approaches based on nonlinear optical processes (wave-mixing) have
allowed major breakthroughs in diverse fields of science and technology. Nevertheless …

Sum frequency generation (SFG) spectroscopy is a unique and powerful tool for
investigating surfaces and interfaces at the molecular level. Phase-sensitive SFG (PS-SFG) …

Frequency-resolved optical gating (FROG) is a very popular technique for complete
characterization of ultrashort laser pulses. In FROG, a reconstruction algorithm retrieves the …

We demonstrate a new attosecond pulse reconstruction modality which uses an algorithm
that is derived from ptychography. In contrast to other methods, energy and delay sampling …

Over the past 15 years, ptychography applications and methods have advanced
significantly. Ptychography is a computational microscopy technique for acquiring images …

The knowledge of the temporal shape of femtosecond pulses is of major interest for all their
applications. The reconstruction of the temporal shape of these pulses is an inverse problem …

We present the main specifications of the newly constructed Swiss Free Electron Laser,
SwissFEL, and explore its potential impact on ultrafast science. In light of recent …

In this paper, we introduce a pulse characterization technique that is free of phase-matching
constraints, exploiting transient absorption in solids as an ultrafast optical switch. Based on a …