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题名: Harmonic and attosecond pulse enhancement in the presence of noise
作者: Feng Li-Qiang1;  Chu Tian-Shu1, 2
关键词: high-order harmonic generation ;  isolated attosecond pulse ;  photoionization
刊名: CHINESE PHYSICS B
发表日期: 2012-12-01
DOI: 10.1088/1674-1056/21/12/124204
卷: 21, 期:12
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Physics, Multidisciplinary
研究领域[WOS]: Physics
英文摘要: In this paper, we theoretically investigate the effect of noise on the photoionization, the generation of the high-order harmonic and the attosecond pulse irradiated from a model He+ ion. It shows that by properly adding noise fields, such as Gaussian white noise, random light or colored noise, both the ionization probabilities (IPs) and the harmonic yields can be enhanced by several orders of magnitude. Further, by tuning the noise intensity, a stochastic resonance-like curve is observed, showing the existence of an optimal noise in the ionization enhancement process. Finally, by superposing a properly selected harmonic, an intense attosecond pulse with a duration of 67 as is directly generated.
关键词[WOS]: LASER FIELD ;  GENERATION ;  PHYSICS
语种: 英语
WOS记录号: WOS:000314221400040
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143020
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Qingdao Univ, Inst Computat Sci & Engn, Lab New Fiber Mat & Modern Text, Growing Base State Key Lab, Qingdao 266071, Peoples R China

Recommended Citation:
Feng Li-Qiang,Chu Tian-Shu. Harmonic and attosecond pulse enhancement in the presence of noise[J]. CHINESE PHYSICS B,2012,21(12).
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