Quantitative extraction of the emission times of high-order harmonics via the determination of instantaneous frequencies
Year: 2013
Type: article
Abstract: We introduce a method using the concept of instantaneous frequency, as determined with the help of a Hilbert transform, to achieve an accurate time-frequency analysis of the dipole issued from the numerical resolution of the time-dependent Schr\"odinger equation for any model system driven by an intense laser field. It permits the quantitative extraction of the emission times of the harmonics that coincide with the recollision times of the laser-driven electronic wave packet with the ionic core, for the first and the second return.
Source: Physical Review A
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2331908635
