This Collection brings together original research on high harmonic generation, focusing on the underlying physical mechanisms and on the next generation of experimental setups. It also highlights the ...

High-order harmonic generation (HHG) in laser fields is a nonlinear optical process whereby intense laser pulses interact with matter, typically gases, to generate radiation at integer multiples of ...

When a laser experiment fails to produce the expected flash of light, most researchers would assume something went wrong with ...

Researchers from Yokohama National University have developed a method to study how titanium's electron orientation and behavior influence its physical properties. Their findings, published in ...

Scientists have found a way to see ultrafast molecular interactions inside liquids using an extreme laser technique once ...

Liquids and solutions may look simple, but on the molecular scale they are constantly shifting and reorganizing. When sugar dissolves in water, each sugar molecule quickly becomes surrounded by fast ...

Photon upconversion through high harmonic generation, multiphoton absorption, Auger recombination and phonon scattering performs a vital role in energy conversion and renormalization. Excitons, the ...

The image captures the generation of attosecond pulses, in which ultrashort (few-cycle) laser pulses interact with a neon gas jet. This interaction initiates high-harmonic generation, yielding the ...

Liquids and solutions may seem simple, but at the molecular level they are constantly in motion. When sugar dissolves in water, for example, each ...