Advances in attosecond science have led to a wealth of important discoveries in atomic,
molecular, and solid-state physics and are progressively directing their footsteps toward …

Since the first demonstration of the generation of attosecond pulses (1 as= 10− 18 s) in the
extreme-ultraviolet spectral region, several measurement techniques have been introduced …

Optical elements that convert the spin angular momentum (SAM) of light into vortex beams
have found applications in classical and quantum optics. These elements—SAM-to–orbital …

Conical intersections allow electronically excited molecules to return to their electronic
ground state. Here, we observe the fastest electronic relaxation dynamics measured to date …

X-ray free-electron lasers (XFELs) and table-top sources of x-rays based upon high
harmonic generation (HHG) have revolutionized the field of ultrafast x-ray atomic and …

Ultrafast processes in matter, such as the electron emission after light absorption, can now
be studied using ultrashort light pulses of attosecond duration (10− 18 seconds) in the …

The transfer of charge at the molecular level plays a fundamental role in many areas of
chemistry, physics, biology and materials science. Today, more than 60 years after the …

Attosecond metrology of atoms has accessed the time scale of the most fundamental
processes in quantum mechanics. Transferring the time-resolved photoelectric effect from …

Photoionisation time delays carry structural and dynamical information on the target system,
including electronic correlation effects in atoms and molecules and electron transport …

Electronic dynamics in liquids are of fundamental importance, but time-resolved experiments
have so far remained limited to the femtosecond time scale. We report the extension of …