Internuclear distance R-distribution of high-order harmonic generation from H2+ and its isotopes

Hang, Liu; Castle, R. S.; Feng, Liqiang

doi:10.1016/j.chemphys.2017.01.001

Cited by 11 publications

(1 citation statement)

References 37 publications

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“…For the case of the pump-probe pulse with t delay = 3.0T 800 (figure 2(b)), due to the effect of the multi-cycle pump pulse, the nuclear wave function can move a larger internuclear distance and escape the FC region. In particular, when 5.5T 1600 < t < 6.0T 1600 , the internuclear distance is around R = 4.0 a.u., where threephoton resonance ionization between the 1sσ g and 2pσ u states of H + 2 can be achieved [53,60]. Thus, the ionization probability can be enhanced and higher-intensity HEE during this time can be found, marked as P 1 .…”

Section: Resultsmentioning

confidence: 99%

Nano-plasmonic-pump-probe effect on the intensity enhancement of attosecond pulse from hydrogen molecular ion

Feng

2018

Laser Phys. Lett.

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An effective scheme to extend the harmonic cutoff and enhance the harmonic yield from ion by using nano-plasmonic-pump-probe technology has been proposed. The essence of the present scheme is to use the pump pulse to steer to the multi-photon-resonance-ionization region, where the ionization probability can be remarkably enhanced. Then, a sequential probe pulse with a proper delay time can enhance the harmonic yield. Furthermore, by properly choosing the injected position of and by properly adding a controlling pulse, a single harmonic emission event with a broader harmonic plateau can be obtained. Finally, by the Fourier transformation of the selected harmonics on the harmonic plateau, a single 38 as pulse with intensity enhancement of 400 times can be obtained.

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Section: Resultsmentioning

confidence: 99%