This tutorial presents an introduction to power scaling concepts for high-order harmonic
generation (HHG) and attosecond pulse production. We present an overview of state-of-the …

Sources of short wavelength radiation with femtosecond to attosecond pulse durations, such
as synchrotrons or free electron lasers, have already made possible numerous, and will …

We demonstrate a femtosecond enhancement cavity with a crossed-beam geometry for
efficient generation and extraction of extreme-ultraviolet (XUV) frequency combs at a 154 …

We generate high-order harmonics in a gaseous medium with tunable photon energy using
time-domain interferometry of double pulses in a noncollinear generation geometry. The …

Separation of the high average power driving laser beam from the generated XUV to soft-X-
ray radiation poses great challenges in collinear HHG setups due to the losses and the …

We investigate the macroscopic physics of noncollinear high harmonic generation (HHG) at
high pressures. We make the first experimental demonstration of phase matching of …

The use of structured light to drive highly nonlinear processes in matter not only enables
imprinting spatially-resolved properties onto short-wavelength radiation, but also opens …

High harmonic generation (HHG) is an ideal probing source. In general, all harmonics are
coupled with the corresponding input laser when generated, and for applications, they are …

A high-power laser pulse at normal incidence onto a plane solid target will generate odd
harmonics of its frequency. However, the spacing of the harmonic lines in this configuration …

We perform a multi-dimensional parameter scan in the generation of high-order harmonics,
with the main purpose to find the macroscopic conditions that optimize the harmonic yield in …