Quantitative rescattering theory for high-order harmonic generation from molecules
By A. Le, R. Lucchese, S. Tonzani, T. Morishita, C. Lin. 2009
250 citations recorded by the source corpus.
The quantitative rescattering theory (QRS) for high-order harmonic generation (HHG) by intense laser pulses is presented. According to the QRS, HHG spectra can be expressed as a product of a returning electron wave packet and the photorecombination differential cross section of the laser-free continuum electron back to the initial bound state. We show that the shape of the returning electron wave packet is determined mostly by the laser. The returning electron wave packets can be obtained from the strong-field approximation or from the solution of the time-dependent Schroedinger equation (TDSE) for a reference atom. The validity of the QRS is carefully examined by checking against accurate results for both harmonic magnitude and phase from the solution of the TDSE for atomic targets within the single active electron approximation. Combining with accurate transition dipoles obtained from state-of-the-art molecular photoionization calculations, we further show that available experimental measurements for HHG from partially aligned molecules can be explained by the QRS. Our results show that quantitative description of the HHG from aligned molecules has become possible. Since infrared lasers of pulse durations of a few femtoseconds are easily available in the laboratory, they may be used for dynamic imaging of a transient moleculemore » with femtosecond temporal resolutions.« less
View Paper: https://www.semanticscholar.org/paper/440c0f514292c231e103ed9b7e9db8f8fda52f18
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
- F. Calegari
- G. Sansone
- P. Hockett
- C. Vozzi
- M. Nisoli
- S. Stagira
- C. Bisgaard
- S. Haessler
Citations in the corpus
- Time-resolved imaging of purely valence-electron dynamics during a chemical reaction (2011, background): “: in both cases, this sensitivity derives from the ionization-matrix elemen”
- Probing collective multi-electron dynamics in xenon with high-harmonic spectroscopy (2011, unknown): “(2) to determine the contribution, then use eq.”
- Generalized molecular orbital tomography (2011, methodology): “In particular, as the method is based on the interference of XUV emissions from different molecular orientations, it retrieves the phase directly as a function of θ at fixed XUV photon energy, whereas the phase relationship between contributions at neighbouring frequencies is determined from a th”
- Attosecond imaging of molecular electronic wavepackets (2010, background): “Computing exact values of molecular recombination dipoles requires a precise knowledge of the continuum states, which is by no means a simple task in such multielectron multicentre system”