Abstract
Describing harmonic generation (HG) in terms of a system’s complex quasienergy, the harmonic power (over a fixed interval, , of harmonic energies) is shown to reproduce the wavelength scaling predicted recently by two groups of authors based on solutions of the time-dependent Schrödinger equation: , where . Oscillations of on a fine scale are then shown to have a quantum origin, involving threshold phenomena within a system of interacting ionization and HG channels, and to be sensitive to the bound state wave function’s symmetry.
- Received 29 November 2007
DOI:https://doi.org/10.1103/PhysRevLett.100.173001
©2008 American Physical Society