Continued development in the areas of communication, security, medicine, and safety is
calling for terahertz‐wave technologies to evolve beyond laboratory research and into the …

Powerful coherent light with a spectrum spanning the mid-infrared (MIR) spectral range is
crucial for a number of applications in natural as well as life sciences, but so far has only …

Achieving control over light–matter interaction in custom-tailored nanostructures is at the
core of modern quantum electrodynamics. In strongly and ultrastrongly coupled systems, the …

Laser-induced terahertz spin transport (TST) and ultrafast demagnetization (UDM) are
central but so far disconnected phenomena in femtomagnetism and terahertz spintronics …

High-brightness sources of coherent and few-cycle-duration light waveforms with spectral
coverage from the ultraviolet to the terahertz would offer unprecedented versatility and …

The sub-cycle interaction of light and matter is one of the key frontiers of inquiry made
accessible by attosecond science. Here, we show that when light excites a pair of charge …

The measurement and control of light field oscillations enable the study of ultrafast
phenomena on sub-cycle time scales. Electro-optic sampling (EOS) is a powerful field …

Measuring transient optical fields is pivotal not only for understanding ultrafast phenomena
but also for the quantitative detection of various molecular species in a sample. Here we …

Nonlinear optical techniques at visible frequencies have long been applied to condensed
matter spectroscopy. However, because many important excitations of solids are found at …

Access to the complete electric field evolution of a laser pulse is essential for attosecond
science in general, and for the scrutiny and control of electron phenomena in solid-state …