Nondipole effects in high-order harmonic generation induced by extreme ultraviolet attosecond pulse
文献类型：期刊论文
| 作者 | Zheng Ying-Hui; Zeng Zhi-Nan; Li Ru-Xin; Xu Zhi-Zhan |
| 刊名 | Acta physica sinica
 |
| 出版日期 | 2007-04-01 |
| 卷号 | 56期号:4页码:2243-2249 |
| 关键词 | Nondipole effects Spatial nonuniformity of the laser pulse Attosecond pulse High-order harmonic generation |
| ISSN号 | 1000-3290 |
| 通讯作者 | Zheng ying-hui(yhzheng@mail.siom.ac.cn) |
| 英文摘要 | When intense infrared laser and extreme ultraviolet (xuv) attosecond pulse interact with an atom or molecule, the released electrons generally suffer a spread of energies due to the absorption and emission of laser photons. the nondipole effects in the high-order harmonic generation caused by the short wavelength of xuv attosecond pulse which is comparable to the scale of spreading electron wavepacket are discussed in this paper. the h-2(+) ion as a model molecule is assumed to be aligned along the propagation direction of the laser field. by solving the two-dimensional time-dependent schr8dinger equation and comparing the results taking account of nondipole effects with those under the dipole approximation, we find that intensity of the former harmonic yield is lower than that of the latter with a shift of the frequency towards lower order harmonies, and that more photoelectron peaks appear in the energy band of the photoelectron spectruni and the difference of their signal intensity at the same photoelectron energy is 2-5-fold. the results of numerical simulation also show that the nondipole effects are enhanced with the infrared laser field strength increasing and are weakened with the wavelength of attosecond pulse increasing. |
| WOS关键词 | LASER FIELDS ; COHERENCE ; INTENSE |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000245844300065 |
| 出版者 | CHINESE PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2380895 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zheng Ying-Hui |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng Ying-Hui,Zeng Zhi-Nan,Li Ru-Xin,et al. Nondipole effects in high-order harmonic generation induced by extreme ultraviolet attosecond pulse[J]. Acta physica sinica,2007,56(4):2243-2249. |
| APA | Zheng Ying-Hui,Zeng Zhi-Nan,Li Ru-Xin,&Xu Zhi-Zhan.(2007).Nondipole effects in high-order harmonic generation induced by extreme ultraviolet attosecond pulse.Acta physica sinica,56(4),2243-2249. |
| MLA | Zheng Ying-Hui,et al."Nondipole effects in high-order harmonic generation induced by extreme ultraviolet attosecond pulse".Acta physica sinica 56.4(2007):2243-2249. |
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来源：中国科学院大学
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