Extraction of the species-dependent dipole amplitude and phase from high-order harmonic spectra in rare-gas atoms
- 11 August 2008
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 78 (2), 023814
- https://doi.org/10.1103/physreva.78.023814
Abstract
Based on high-order harmonic generation (HHG) spectra obtained from solving the time-dependent Schrödinger equation for atoms, we established quantitatively that the HHG yield can be expressed as the product of a returning electron wave packet and photorecombination cross sections, and the shape of the returning wave packet is shown to be largely independent of the species. By comparing the HHG spectra generated from different targets under identical laser pulses, accurate structural information, including the phase of the recombination amplitude, can be retrieved. This result opens up the possibility of studying the target structure of complex systems, including their time evolution, from the HHG spectra generated by short laser pulses.Keywords
This publication has 26 references indexed in Scilit:
- Theory of high-order harmonic generation from molecules by intense laser pulsesJournal of Physics B: Atomic, Molecular and Optical Physics, 2008
- Accurate Retrieval of Structural Information from Laser-Induced Photoelectron and High-Order Harmonic Spectra by Few-Cycle Laser PulsesPhysical Review Letters, 2008
- Isolated Single-Cycle Attosecond PulsesScience, 2006
- Amplitude and Phase Control of Attosecond Light PulsesPhysical Review Letters, 2005
- Nonlinear optics in the extreme ultravioletNature, 2004
- Tomographic imaging of molecular orbitalsNature, 2004
- Attosecond Synchronization of High-Harmonic Soft X-raysScience, 2003
- Time-resolved atomic inner-shell spectroscopyNature, 2002
- Theory of high-harmonic generation by low-frequency laser fieldsPhysical Review A, 1994
- Plasma perspective on strong field multiphoton ionizationPhysical Review Letters, 1993