The quest for ever‐shorter optical pulses has been ongoing for over half a century. Although
few‐cycle pulses have been generated for nearly 40 years, pulse lengths below the single …

Since the first isolated attosecond pulse was demonstrated through high-order harmonics
generation (HHG) in 2001, researchers' interest in the ultrashort time region has expanded …

The availability of high-energy pulses with durations shorter than the period of their carrier
frequency (sub-cycle) will reveal new regimes of strong-field light–matter interactions …

This review presents the technological infrastructure that will be available at the Extreme
Light Infrastructure Attosecond Light Pulse Source (ELI-ALPS) international facility. ELI …

Attosecond metrology sensitive to sub-optical-cycle electronic and structural dynamics is
opening up new avenues for ultrafast spectroscopy of condensed matter. Using intense …

A high-brightness ultrabroadband supercontinuum white laser is desirable for various fields
of modern science. Here, we present an intense ultraviolet-visible-infrared full-spectrum …

The advancement of the ultrafast pulse sha** and waveform synthesis allowed to
coherently control the atomic and electronic motions in matter. The temporal resolution of the …

A stable 50-mJ three-channel optical waveform synthesizer is demonstrated and used to
reproducibly generate a high-order harmonic supercontinuum in the soft x-ray region. This …

Supercontinuum white laser with large bandwidth and high pulse energy would offer
incredible versatility and opportunities for basic science and high technology applications …

Classical electromagnetism allows the rapidity of light field oscillations to be inferred from
measurement of the speed and wavelength of light. Quantum mechanics connects the …