FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Contributions of the Two Nuclei to the Harmonic Generation in H+2 Molecules |
PEI Ya-Nan, MIAO Xiang-Yang** |
College of Physics and Information Engineering, Shanxi Normal University, Linfen 041004
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Cite this article: |
PEI Ya-Nan, MIAO Xiang-Yang 2014 Chin. Phys. Lett. 31 104202 |
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Abstract The separate contributions of the two nuclei in H+2 to the harmonic generation are investigated by numerically solving the time-dependent Schr?dinger equation. The results show that the diverse electron distributions around the two nuclei under the effect of a laser field lead to different contributions of the two nuclei to the harmonic generation in different times, i.e., the contribution mainly comes from nucleus A around the (n+0.5) optical cycle while from nucleus B around the n optical cycle. By means of the time-frequency distributions and the coupled electron nuclear wave-packet density distributions, the physical mechanism is discussed in detail.
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Published: 31 October 2014
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PACS: |
42.65.Ky
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(Frequency conversion; harmonic generation, including higher-order harmonic generation)
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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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33.80.Wz
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(Other multiphoton processes)
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Abstract
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