Physics – Atomic Physics
Scientific paper
2009-01-13
Physics
Atomic Physics
11 pages, 13 figures
Scientific paper
We investigate the connection of recently identified fine-scale oscillations in the dependence of the yield of the high-harmonic generation (HHG) on wavelength lambda of a few-cycle laser pulse [K. Schiessl, K.L. Ishikawa, E. Persson, and J. Burgdorfer, Phys. Rev. Lett. 99, 253903 (2007)] to the well-known channel closing (CC) effect. Using the Lewenstein model of HHG, we identify the origin of the oscillations as quantum interference of many rescattering trajectories. By studying the simultaneous variations with intensity and wavelength, different models for the interference of channel closing peaks can be tested. Contrary to theoretical predictions for short-range potentials, the peaks are not located neither at nor just below the CC condition, but a significant shift is observed. The long Coulomb tail of the atomic potential is identified as the origin of the shift.
Burgdörfer Joachim
Ishikawa Kenichi L.
Persson Emil
Schiessl Klaus
No associations
LandOfFree
Fine-scale oscillations in the wavelength- and intensity-dependence of high-harmonic generation: connection with channel closings does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Fine-scale oscillations in the wavelength- and intensity-dependence of high-harmonic generation: connection with channel closings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fine-scale oscillations in the wavelength- and intensity-dependence of high-harmonic generation: connection with channel closings will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-71724