Enhancing the efficiency of high-order harmonics with two-color non-collinear wave mixing in silica.

ABSTRACT: The emission of high-order harmonics from solids under intense laser-pulse irradiation is revolutionizing our understanding of strong-field solid-light interactions, while simultaneously opening avenues towards novel, all-solid, coherent, short-wavelength table-top sources with tailored emission profiles and nanoscale light-field control. To date, broadband spectra in solids have been generated well into the extreme-ultraviolet (XUV), but the comparatively low conversion efficiency in the XUV range achieved under optimal conditions still lags behind gas-based high-harmonic generation (HHG) sources. Here, we demonstrate that two-color high-order harmonic wave mixing in a fused silica solid is more efficient than solid HHG driven by a single color. This finding has significant implications f

SUBMITTER: Roscam Abbing SDC 

PROVIDER: S-EPMC11436833 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature