Intensity distributions and isolated attosecond pulse generation from molecular high-order harmonic generation in H-2(+) driven by nonhomogeneous field
文献类型：期刊论文
| 作者 | Feng, Liqiang1,3; Chu, Tianshu2,3 |
| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2017-10-01 |
| 卷号 | 24期号:10 |
| 英文摘要 | Intensity distributions and isolated attosecond pulse generation from the molecular high-order harmonic generation (MHHG) in H-2(+) and T-2(+) driven by the nonhomogeneous field have been theoretically investigated. (i) Generally speaking, the intensities of the harmonics driven by the homogeneous field can be enhanced as the initial vibrational state increases and much more intense harmonics can be obtained from the light nuclei. However, with the introduction of the nonhomogeneous effect, the enhanced ratios of the harmonic yields are decreased as the initial vibrational state increases. Moreover, the intensities of the harmonics from H-2(+) and T-2(+) are very sensitive to the nonhomogeneous effect of the laser field. (ii) The contributions of the MHHG from the two-H nuclei present the periodic variation as a function of the laser phase for the case of the symmetric nonhomogeneous field. However, for the case of the positive and the negative asymmetric nonhomogeneous fields, the left-H and the right-H play the dominating role in the MHHG, respectively. Moreover, as the angle between the laser polarization direction and the molecular axis increases, the intensity differences of the harmonics from the two-H nuclei are increased. (iii) By properly adding a half-cycle pulse into the positive asymmetric nonhomogeneous field, a supercontinuum with the bandwidth of 279 eV and an isolated 25 as pulse can be obtained. Published by AIP Publishing. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Fluids & Plasmas |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | LASER FIELDS ; CHIRP CONTROL ; IONIZATION ; ENHANCEMENT ; EMISSION ; UNIPOLAR |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000414171600117 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/149763]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Liaoning Univ Technol, Coll Sci, Lab Modern Phys, Jinzhou 121001, Peoples R China 2.Qingdao Univ, Growing Base State Key Lab, Lab New Fiber Mat & Modern Text, Inst Computat Sci & Engn, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Liqiang,Chu, Tianshu. Intensity distributions and isolated attosecond pulse generation from molecular high-order harmonic generation in H-2(+) driven by nonhomogeneous field[J]. PHYSICS OF PLASMAS,2017,24(10). |
| APA | Feng, Liqiang,&Chu, Tianshu.(2017).Intensity distributions and isolated attosecond pulse generation from molecular high-order harmonic generation in H-2(+) driven by nonhomogeneous field.PHYSICS OF PLASMAS,24(10). |
| MLA | Feng, Liqiang,et al."Intensity distributions and isolated attosecond pulse generation from molecular high-order harmonic generation in H-2(+) driven by nonhomogeneous field".PHYSICS OF PLASMAS 24.10(2017). |
入库方式： OAI收割
来源：大连化学物理研究所
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