A Dual-Sideband Attosecond Interferometry Setup
Abstract
We present the development and implementation of an experimental setup designed to investigate attosecond photoionization delays using a dual-sideband RABBITT (Reconstruction of Attosecond Beating By Interference of Two-Photon Transitions) technique. The setup utilizes an attosecond extreme ultraviolet source from high-harmonic generation driven by a carrier-envelope-phase-stabilized Ti:sapphire laser centered at 800 nm. The extreme ultraviolet radiation is synchronized with a 1200 nm infrared probe pulse generated via a non-collinear optical parametric amplifier. Active delay stabilization by means of a spectrally resolved interferometer signal achieves 45 as root-mean-square timing precision and enables the observation of sideband oscillations. Taking advantage of the dependence of the sideband signal on the carrier-envelope phase of the driving field, we report sideband-yield oscillations as a function of this parameter.
Cite
@article{arxiv.2603.27477,
title = {A Dual-Sideband Attosecond Interferometry Setup},
author = {Muhammad Jahanzeb and Marvin Schmoll and Paul Weizel and Simon Majoni and Ronak Narendra Shah and Mario Niebuhr and Cristian Manzoni and Giuseppe Sansone},
journal= {arXiv preprint arXiv:2603.27477},
year = {2026}
}
Comments
09 pages and 7 figures