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Above-threshold ionization and high-order harmonic generation by mid-infrared and far-infrared laser pulses
| Content Provider | Semantic Scholar |
|---|---|
| Author | Liu, Chengtang Nakajima, Takashi Sakka, Tetsuo Ohgaki, Hideaki |
| Copyright Year | 2008 |
| Abstract | We investigate above-threshold ionization and high-order harmonic generation processes by mid-infrared $(3.3\text{ }\ensuremath{\mu}\text{m})$ and far-infrared $(10\text{ }\ensuremath{\mu}\text{m})$ laser pulses using the numerical solution of the time-dependent Schr\"odinger equation for the potassium atom. When the laser intensity is reasonably high, we find two plateaus in the above-threshold ionization spectra. With the use of two different potential models and a classical analysis, we clarify that the first plateau mainly originates from the contribution of the excited bound states while the second one is associated with the well-known backscattering process. Corresponding results for the harmonic spectra verify our interpretation. |
| Starting Page | 043411 |
| Ending Page | 043411 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1103/PhysRevA.77.043411 |
| Alternate Webpage(s) | http://www.escience.cn/system/download/72292 |
| Alternate Webpage(s) | https://doi.org/10.1103/PhysRevA.77.043411 |
| Volume Number | 77 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
