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2018 Volume 27 Issue 2
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Xue-Fei Pan, Jun Zhang, Shuai Ben, Tong-Tong Xu, Xue-Shen Liu. 2018: Spectral redshift of high-order harmonics by adding a weak pulse in the falling part of the trapezoidal laser pulse, Chinese Physics B, 27(2): 374-379. doi: 10.1088/1674-1056/27/2/024206
Citation: Xue-Fei Pan, Jun Zhang, Shuai Ben, Tong-Tong Xu, Xue-Shen Liu. 2018: Spectral redshift of high-order harmonics by adding a weak pulse in the falling part of the trapezoidal laser pulse, Chinese Physics B, 27(2): 374-379. doi: 10.1088/1674-1056/27/2/024206
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Spectral redshift of high-order harmonics by adding a weak pulse in the falling part of the trapezoidal laser pulse

  • Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China

  • Available Online: 01/01/2018
  • Fund Project: the National Natural Science Foundation of China(Grant 61575077)%the Graduate Innovation Fund of Jilin University(Grant 2017107)
  • We investigate the spectral redshift of high-order harmonics of the H2+ (D2+) molecule by numerically solving the non-Born-Oppenheimer time-dependent Schrodinger equation (TDSE).The results show that the spectral redshift of high-order harmonics can be observed by adding a weak pulse in the falling part of the trapezoidal laser pulses.Comparing with the H2+ molecule,the shift of high-order harmonic generation (HHG) spectrum for the D2+ molecule is more obvious.We employ the spatial distribution in HHG and time-frequency analysis to illustrate the physical mechanism of the spectral redshift of high-order harmonics.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Spectral redshift of high-order harmonics by adding a weak pulse in the falling part of the trapezoidal laser pulse

  • Available Online: 01/01/2018

Abstract: We investigate the spectral redshift of high-order harmonics of the H2+ (D2+) molecule by numerically solving the non-Born-Oppenheimer time-dependent Schrodinger equation (TDSE).The results show that the spectral redshift of high-order harmonics can be observed by adding a weak pulse in the falling part of the trapezoidal laser pulses.Comparing with the H2+ molecule,the shift of high-order harmonic generation (HHG) spectrum for the D2+ molecule is more obvious.We employ the spatial distribution in HHG and time-frequency analysis to illustrate the physical mechanism of the spectral redshift of high-order harmonics.

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