Work

Group velocity matching in high-order harmonic generation driven by mid-infrared lasers

Year: 2016

Type: article

Abstract: We analyze the role of group-velocity matching (GVM) in the macroscopic build up of the high-harmonic signal generated in gas targets at high pressures. A definition of the walk-off length, associated with GVM, in the non-perturbative intensity regime of high-harmonic generation is given. Semiclassical predictions based on this definition are in excellent agreement with full quantum simulations. We demonstrate that group velocity matching is a relevant factor in high harmonic generation and the isolation of attosecond pulses driven by long wavelength lasers and preferentially selects contributions from the short quantum trajectories.

Source: New Journal of Physics

DOI: 10.1088/1367-2630/18/7/073031

Authors: C Hernández-García, T Popmintchev, M M Murnane, H C Kapteyn, L Plaja, A Becker, A Jaron-Becker

Institutions: Joint Institute for Laboratory Astrophysics, Universidad de Salamanca, University of Colorado Boulder

Language: English

Topic: Laser-Matter Interactions and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,610

Funders: National Science Foundation, Ministerio de Economía y Competitividad, Junta de Castilla y León, University of Colorado Boulder, Multidisciplinary University Research Initiative, Research Executive Agency, Air Force Office of Scientific Research

Awards: G2208413834, JILA PFC: Bridging theGap from Few-Body to Many-Body through Quantum Control, Physics of Multi-Electron Sytems Interacting with Novel Laser Sources, G399732708, G5201109936, G5801624628, G6903156038, MRI-Consortium: Acquisition of a Supercomputer by the Front Range Computing Consortium, G8333673074, G8413387445

OpenAlex ID: W2473041147

FWCI: 2.248

Cites: 33

Cited by: 29

Related to: 10