中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Shaping attosecond pulses by controlling the minima in high-order harmonic generation through alignment of CO2 molecules

文献类型:期刊论文

作者Jin, Cheng2,3; Wang, Su-Ju4; Zhao, Xi4; Zhao, Song-Feng1; Lin, C. D.4
刊名PHYSICAL REVIEW A
出版日期2020-01-23
卷号101期号:1
ISSN号2469-9926;2469-9934
DOI10.1103/PhysRevA.101.013429
产权排序1
英文摘要

We report a simple method for generating shaped attosecond pulses by using a CO2 molecule. Unlike most other molecules, owing to its unique energy and angle dependence and the presence of deep minima in the photoionization transition dipole moment, the shape of harmonic spectra, especially the position and depth of minima, can be readily controlled by tuning the degree of alignment. The sensitive alignment dependence of the minima is due to the coherent interference of a laser-induced dipole from each molecule when CO2 molecules are moderately aligned, but not when they are well aligned or when they are isotropically distributed. Such a sensitivity offers a simple way of controlling the spectral amplitude and phase of the generated harmonics and thus shaping the generated attosecond pulses, for example, producing structured attosecond pulses by splitting a single burst into two. We illustrate how such pulses are generated and how to characterize them. This method offers a simple way to shape attosecond pulses at the generation step. It can be easily implemented experimentally to generate attosecond pulses with strong phase variations for unique applications.

语种英语
出版者AMER PHYSICAL SOC
WOS记录号WOS:000509471100004
源URL[http://ir.opt.ac.cn/handle/181661/93188]  
专题西安光学精密机械研究所_瞬态光学技术国家重点实验室
通讯作者Jin, Cheng
作者单位1.Northwest Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, Peoples R China
2.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China
3.Nanjing Univ Sci & Technol, Dept Appl Phys, Nanjing 210094, Peoples R China
4.Kansas State Univ, Dept Phys, JR Macdonald Lab, Manhattan, KS 66506 USA
推荐引用方式
GB/T 7714
Jin, Cheng,Wang, Su-Ju,Zhao, Xi,et al. Shaping attosecond pulses by controlling the minima in high-order harmonic generation through alignment of CO2 molecules[J]. PHYSICAL REVIEW A,2020,101(1).
APA Jin, Cheng,Wang, Su-Ju,Zhao, Xi,Zhao, Song-Feng,&Lin, C. D..(2020).Shaping attosecond pulses by controlling the minima in high-order harmonic generation through alignment of CO2 molecules.PHYSICAL REVIEW A,101(1).
MLA Jin, Cheng,et al."Shaping attosecond pulses by controlling the minima in high-order harmonic generation through alignment of CO2 molecules".PHYSICAL REVIEW A 101.1(2020).

入库方式: OAI收割

来源:西安光学精密机械研究所

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