Selective enhancement of single-order and two-order harmonics from He atom via two-color and three-color laser fields
文献类型：期刊论文
| 作者 | Li, Yi2; Feng, Liqiang1,2; Qiao, Yan1,3 |
| 刊名 | CHEMICAL PHYSICS
 |
| 出版日期 | 2019-11-01 |
| 卷号 | 527页码:8 |
| ISSN号 | 0301-0104 |
| 关键词 | High-order harmonic generation Selective enhancement of single-order harmonics Selective enhancement of two-order harmonics Laser waveform control Two-color and three-color combined fields |
| DOI | 10.1016/j.chemphys.2019.110497 |
| 通讯作者 | Qiao, Yan(qiaoyan_07@126.com) |
| 英文摘要 | An effective method to achieve the selective enhancement of single-order and two-order harmonics from He atom has been proposed through laser waveform control of two-color and three-color laser fields. Firstly, with the optimization of omega-2 omega two-color laser waveform, not only the wavelength tunable single-order harmonic (i.e. from 182th order to 328th order) can be enhanced by 17 times compared with the neighbor harmonics, but also the enhancement of two-order harmonics can also be obtained. Theoretical analyses show that the enhancement of the specific harmonics is coming from the folded structure on the short quantum path of the harmonic emission peak. Detail analyses show that the above folded structure happens in the reversed sub-peak region of the half-cycle laser waveform, where the deceleration and further acceleration of the free electron can be found in this structure. Moreover, this structure is dependent on the pulse duration of the controlling pulse. However, it is not very sensitive to the wavelength of the controlling pulse. Further, by properly adding a 3 omega pulse, not only the efficiency of spectral continuum can be enhanced by 300 times compared with that from the two-color field, but also the generation of single-order harmonic with the intensity enhancement of 20 times can be found. Furthermore, the enhancement of the harmonic spectrum can also be achieved when using the 4 omega or 6 omega controlling pulses. |
| WOS关键词 | WAVE-FORM CONTROL ; ATTOSECOND PULSE ; GENERATION ; EXTENSION ; EMISSION ; INTENSE ; H-2(+) |
| 资助项目 | National Natural Science Foundation of China[11504151] |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000487251000016 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/172778]  |
| 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 | Qiao, Yan |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 2.Liaoning Univ Technol, Lab Mol React Dynam, Jinzhou 121001, Peoples R China 3.Zhengzhou Univ, Basic Med Coll, Dept Pathophysiol, Zhengzhou 450001, Henan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yi,Feng, Liqiang,Qiao, Yan. Selective enhancement of single-order and two-order harmonics from He atom via two-color and three-color laser fields[J]. CHEMICAL PHYSICS,2019,527:8. |
| APA | Li, Yi,Feng, Liqiang,&Qiao, Yan.(2019).Selective enhancement of single-order and two-order harmonics from He atom via two-color and three-color laser fields.CHEMICAL PHYSICS,527,8. |
| MLA | Li, Yi,et al."Selective enhancement of single-order and two-order harmonics from He atom via two-color and three-color laser fields".CHEMICAL PHYSICS 527(2019):8. |
入库方式： OAI收割
来源：大连化学物理研究所
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