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Controlling the contributions to high-order harmonic generation from different nuclei of N 2 with an orthogonally polarized two-color laser field
| Content Provider | Scilit |
|---|---|
| Author | Du, Hui Pan, Xue-Fei Liu, Hai-Feng Zhang, Hong-Dan Zhang, Jun Guo, Jing Liu, Xue-Shen |
| Copyright Year | 2016 |
| Description | Journal: Chinese Physics B The generation of high-order harmonic and the attosecond pulse of the $N_{2}$ molecule with an orthogonally polarized two-color laser field are investigated by the strong-field Lewenstein model. We show that the control of contributions to high-order harmonic generation (HHG) from different nuclei is realized by properly selecting the relative phase. When the relative phase is chosen to be = 0.4π, the contribution to HHG from one nucleus is much more than that from another. Interference between two nuclei can be suppressed greatly; a supercontinuum spectrum of HHG appears from 40 eV to 125 eV. 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, an isolated attosecond pulse with a duration of 80 as can be generated. |
| Related Links | http://iopscience.iop.org/article/10.1088/1674-1056/25/9/093202/pdf |
| ISSN | 16741056 |
| e-ISSN | 20583834 |
| DOI | 10.1088/1674-1056/25/9/093202 |
| Journal | Chinese Physics B |
| Issue Number | 9 |
| Volume Number | 25 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2016-08-30 |
| Access Restriction | Open |
| Subject Keyword | Journal: Chinese Physics B Nuclear Physics High Order Different Nuclei Orthogonally Polarized Order Harmonic Generation Color Laser |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
