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High-harmonic generation from hydrogen atoms driven by two-color mutually orthogonal laser fields
| Content Provider | Semantic Scholar |
|---|---|
| Author | Murakami, Mitsuko Korobkin, Oleg Horbatsch, M. |
| Copyright Year | 2013 |
| Abstract | Calculations of high-harmonic spectra from hydrogen atoms driven by strong two-color orthogonal fields with wavelengths 800 and 400 nm are presented. The azimuthal symmetry of the electron dynamics is broken by the two-color orthogonal fields, and therefore the fully three-dimensional time-dependent Schrodinger equation is solved by using the generalized pseudospectral method. The cycle-averaged collision angles as a function of phase delay between the orthogonal fields are evaluated from the harmonic spectra. The results are in qualitative agreement with a recent experiment with helium atoms. Furthermore, the timing and direction of recollisions during the high-harmonic generation are analyzed in the time-frequency domain to extract electron trajectory information on subcycle time scales. Comparison with recent model calculations is also made. |
| Starting Page | 063419 |
| Ending Page | 063419 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1103/PhysRevA.88.063419 |
| Volume Number | 88 |
| Alternate Webpage(s) | http://www.yorku.ca/marko/IonAtom/PRA88_063419.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |