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 ...

As demand for next-generation chips intensifies, high-harmonic generation (HHG) is becoming fundamental in semiconductor research and development. Erik Hosler, a specialist in semiconductor processes, ...