1. High-order harmonic generation in sub-one-cycle regime.
- Author
-
Xiang Yang, Niu Yue-Ping, Qi Yi-Hong, and Gong Shang-Qing
- Subjects
- *
NONLINEAR optics , *ATOMIC hydrogen , *ULTRASHORT laser pulses , *SWITCHING circuits , *SPECTRUM analysis , *LASER beams - Abstract
We theoretically investigate the high-order harmonic generation from the hydrogen atom driven by the laser pulses with the durations less than the optical cycle. It is found that the switching term of the laser field may have an obvious influence on the cutoff, intensity or plateau structure of the high-order harmonic spectrum. Generally speaking, the switching term can shorten the cutoff of the high-order harmonic spectrum for a relatively longer pulse and extend the cutoff for a relatively shorter pulse. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF