Inhomogeneous High-order Harmonic Generation in Krypton Clusters
Abstract
High order harmonic generation from clusters is a controversial topic: conflicting theories exist, with different explanations for similar experimental observations. From an experimental point of view, separating the contributions from monomers and clusters is challenging. By performing a spectrally and spatially resolved study in a controlled mixture of clusters and monomers, we are able to isolate a region of the spectrum where the emission purely originates from clusters. Surpringly, the emission from clusters is depolarized, which is the signature of statistical inhomogeneous emission from a low-density source. The harmonic response to laser ellipticity shows that this generation is produced by a new recollisional mechanism, which opens the way to future theoretical studies.
Cite
@article{arxiv.1301.5487,
title = {Inhomogeneous High-order Harmonic Generation in Krypton Clusters},
author = {H. Ruf and C. Handschin and R. Cireasa and N. Thiré and A. Ferré and S. Petit and D. Descamps and E. Mével and E. Constant and V. Blanchet and B. Fabre and Y. Mairesse},
journal= {arXiv preprint arXiv:1301.5487},
year = {2015}
}
Comments
accepted at Physical Review Letters