Eur. Phys. J. Special Topics 175, 191-194 (2009)
https://doi.org/10.1140/epjst/e2009-01140-5

Direct observation of quantum-path interferences in high order harmonic generation

¹ CELIA, Université Bordeaux I, CEA, CNRS, UMR 5107, 33405 Talence Cedex, France
² Physics Department, ETH Zürich, 8093 Zürich, Switzerland
³ Clarendon Laboratory, Parks Road, Oxford, OX1 3PU, UK
⁴ SPAM, Centre d'Études de Saclay, 91191 Gif-sur-Yvette, France

Corresponding authors: cormier@celia.u-bordeaux1.fr zair@phys.ethz.ch

Abstract

Intensity dependent high harmonic generation was investigated when both short and long trajectories contribute to the emission. We have directly observed for the first time clear indication of quantum-path interference through harmonic spectrum modulations.