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Single X-Ray Attosecond Pulse Generation by Using Combined Pulses Irradiating on a United Two-Atom System |
| CHEN Ji-Gen1;LI Chen1;CHI Fang-Ping2;YANG Yu-Jun3,4 |
| 1Department of Physics, Taizhou University, Linhai 317000
2College of Physics and Electronic Engineering, Ludong University, Yantai 264003
3Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012
4Institute of Theoretical Chemistry, Jilin University, Changchun 130012 |
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| Cite this article: |
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CHEN Ji-Gen, LI Chen, CHI Fang-Ping et al 2007 Chin. Phys. Lett. 24 86-89 |
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Abstract A scheme of a single x-ray attosecond pulse generation from a two-atom system exposed to the combined laser pulses is proposed. Our numerical results show that a single x-ray attosecond pulse rather than a train one can be produced by modulation of ionization. Furthermore, when we change the peak intensity Ih of the high-frequency pulse and keep the intensity of the low-frequency pulse constant, we can find that a range of Ih where the intensity of the attosecond pulse is optimal is available, and a explanation by the stimulated property of the recombination is also presented.
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| Keywords:
32.80.Rm
42.50.Hz
42.65.Ky
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Published: 01 January 2007
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| PACS: |
32.80.Rm
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(Multiphoton ionization and excitation to highly excited states)
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42.50.Hz
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(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
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42.65.Ky
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(Frequency conversion; harmonic generation, including higher-order harmonic generation)
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