Theoretical exploration of asymmetric molecular harmonic emission and attosecond pulse generation in the presence of spatially inhomogeneous plasmon-enhanced field
文献类型：期刊论文
| 作者 | Feng, Liqiang1,2,3 |
| 刊名 | MOLECULAR PHYSICS
 |
| 出版日期 | 2016 |
| 卷号 | 114期号:15页码:2217-2231 |
| 关键词 | Molecular High-order Harmonics Spatially Inhomogeneous Field Attosecond Pulses |
| ISSN号 | 0026-8976 |
| DOI | 10.1080/00268976.2016.1192233 |
| 文献子类 | Article |
| 英文摘要 | Asymmetric molecular harmonic generation from HeH2+ ion in the presence of the spatially inhomogeneous plasmon-enhanced field has been theoretically investigated by solving the two-dimensional non-Born-Oppenheimer time-dependent Schrodinger equation (both the electron and nuclear motions are considered only along the laser polarisation axis). It shows that (1) for the normal homogeneous field, the harmonic cut-off from the asymmetric molecule is beyond the classical harmonic cut-off energy from the atom (I-p + 3.17 U-p). Further analyses show that the multi-channels ionisation-recombination process is responsible for the harmonic extension. (2) For the spatially inhomogeneous plasmon-enhanced field, the harmonic cut-off can be further enhanced, and an optimal 3.0 dB enhanced field with a 482 eV supercontinuum has been obtained. Quantum time-frequency harmonic analyses have been shown to explain the harmonic characteristics and the harmonic extension process. (3) Initial vibrational state and isotopic effects show that intense harmonics can be generated from higher initial vibrational state and the heavier molecule. Finally, by properly superposing the harmonics, a series of sub-30 as attosecond pulses can be obtained. |
| WOS关键词 | WAVE-PACKET |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000380541500001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/170328]  |
| 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 |
| 通讯作者 | Feng, Liqiang |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian, Peoples R China 2.Liaoning Univ Technol, Coll Sci, Jinzhou, Peoples R China 3.Liaoning Univ Technol, Sch Chem & Environm Engn, Jinzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Liqiang. Theoretical exploration of asymmetric molecular harmonic emission and attosecond pulse generation in the presence of spatially inhomogeneous plasmon-enhanced field[J]. MOLECULAR PHYSICS,2016,114(15):2217-2231. |
| APA | Feng, Liqiang.(2016).Theoretical exploration of asymmetric molecular harmonic emission and attosecond pulse generation in the presence of spatially inhomogeneous plasmon-enhanced field.MOLECULAR PHYSICS,114(15),2217-2231. |
| MLA | Feng, Liqiang."Theoretical exploration of asymmetric molecular harmonic emission and attosecond pulse generation in the presence of spatially inhomogeneous plasmon-enhanced field".MOLECULAR PHYSICS 114.15(2016):2217-2231. |
入库方式： OAI收割
来源：大连化学物理研究所
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