Spatio-Spectral Structures in High Harmonic Generation Driven by a High Repetition Rate OPCPA at 1.55 µm
Abstract
We investigate the spatio-spectral properties of high-harmonic generation driven by an optical parametric chirped pulse amplifier at 1.55 µm wavelength operating at 125 kHz. Ring-like structures are observed and explained by the transverse atomic-induced phase.