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High-order harmonic generation of N 2 molecule in two-color circularly polarized laser fields
| Content Provider | Scilit |
|---|---|
| Author | Du, Hui Zhang, Jun Ben, Shuai Zhong, Hui-Ying Xu, Tong-Tong Guo, Jing Liu, Xue-Shen |
| Copyright Year | 2016 |
| Description | Journal: Chinese Physics B The generation of high-order harmonics and the attosecond pulse of the $N_{2}$ molecule in two-color circularly polarized laser fields are investigated by the strong-field Lewenstein model. We show that the plateau of spectra is dramatically extended and a continuous harmonic spectrum with the bandwidth of 113 eV is obtained. When a static field is added to the x direction, the quantum path control is realized and a supercontinuum spectrum can be obtained, which is beneficial to obtain a shorter attosecond pulse. The underlying physical mechanism is well explained by the time–frequency analysis and the semi-classical three-step model with a finite initial transverse velocity. By superposing several orders of harmonics in the combination of two-color circularly polarized laser fields and a static field, an isolated attosecond pulse with a duration of 30 as can be generated. |
| Related Links | http://iopscience.iop.org/article/10.1088/1674-1056/25/4/043202/pdf |
| ISSN | 16741056 |
| e-ISSN | 20583834 |
| DOI | 10.1088/1674-1056/25/4/043202 |
| Journal | Chinese Physics B |
| Issue Number | 4 |
| Volume Number | 25 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2016-04-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Chinese Physics B Color Circularly Order Harmonics N2 Molecule Circularly Polarized Laser Polarized Laser Fields |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
