Quantum Path Interferences in High-Order Harmonic Generation
A. ZaïrPhysics Department, ETH Zurich, CH-8093 Zurich, Switzerland. [email protected]Mirko HollerPhysics Department, ETH Zurich, CH-8093 Zurich, SwitzerlandA. GuandaliniPhysics Department, ETH Zurich, CH-8093 Zurich, SwitzerlandF. SchapperPhysics Department, ETH Zurich, CH-8093 Zurich, SwitzerlandJens BiegertPhysics Department, ETH Zurich, CH-8093 Zurich, SwitzerlandL. GallmannPhysics Department, ETH Zurich, CH-8093 Zurich, SwitzerlandU. KellerPhysics Department, ETH Zurich, CH-8093 Zurich, SwitzerlandAdam S. WyattPhysics Department, ETH Zurich, CH-8093 Zurich, SwitzerlandAntoine MonmayrantPhysics Department, ETH Zurich, CH-8093 Zurich, SwitzerlandIan A. WalmsleyPhysics Department, ETH Zurich, CH-8093 Zurich, SwitzerlandE. CormierPhysics Department, ETH Zurich, CH-8093 Zurich, SwitzerlandT. AugustePhysics Department, ETH Zurich, CH-8093 Zurich, SwitzerlandJean-Pascal CaumesPhysics Department, ETH Zurich, CH-8093 Zurich, SwitzerlandP. SalièresPhysics Department, ETH Zurich, CH-8093 Zurich, Switzerland
2008en
ABI
Аннотация
We have investigated the intensity dependence of high-order harmonic generation in argon when the two shortest quantum paths contribute to the harmonic emission. For the first time to our knowledge, experimental conditions were found to clearly observe interference between these two quantum paths that are in excellent agreement with theoretical predictions. This result is a first step towards the direct experimental characterization of the full single-atom dipole moment and demonstrates an unprecedented accuracy of quantum path control on an attosecond time scale.
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