Tunable spectral shift of high-order harmonic generation in atoms using a sinusoidally phase-modulated pulse

doi:10.1088/1674-1056/ac2d1c

中国物理B ›› 2022, Vol. 31 ›› Issue (6): 64214-064214.doi: 10.1088/1674-1056/ac2d1c

Tunable spectral shift of high-order harmonic generation in atoms using a sinusoidally phase-modulated pulse

Yue Qiao(乔月)^1,2, Jun Wang(王俊)^1,†, Yan Yan(闫妍)¹, Simeng Song(宋思蒙)¹, Zhou Chen(陈洲)¹, Aihua Liu(刘爱华)¹, Jigen Chen(陈基根)², Fuming Guo(郭福明)^1,‡, and Yujun Yang(杨玉军)^1,§

1 Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
2 Department of Physics and Materials Engineering, Taizhou University, Taizhou 318000, China

收稿日期:2021-07-13 修回日期:2021-09-09 接受日期:2021-10-06 出版日期:2022-05-17 发布日期:2022-05-19
通讯作者: Jun Wang, Fuming Guo, Yujun Yang E-mail:wangjun86@jlu.edu.cn;guofm@jlu.edu.cn;yangyj@jlu.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11604119, 11627807, 11774129, 11774131, 11904120, 11975012, and 91850114) and the Outstanding Youth Project of Taizhou University (Grant No. 2019JQ002).

Tunable spectral shift of high-order harmonic generation in atoms using a sinusoidally phase-modulated pulse

1 Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
2 Department of Physics and Materials Engineering, Taizhou University, Taizhou 318000, China

Received:2021-07-13 Revised:2021-09-09 Accepted:2021-10-06 Online:2022-05-17 Published:2022-05-19
Contact: Jun Wang, Fuming Guo, Yujun Yang E-mail:wangjun86@jlu.edu.cn;guofm@jlu.edu.cn;yangyj@jlu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11604119, 11627807, 11774129, 11774131, 11904120, 11975012, and 91850114) and the Outstanding Youth Project of Taizhou University (Grant No. 2019JQ002).

摘要/Abstract

摘要： High-order harmonic generation (HHG) from an atom illuminated by a sinusoidally phase-modulated pulse is investigated by solving the time-dependent Schrödinger equation. The spectral shift that occurs in atomic HHG can be achieved easily using our laser pulse. It is shown that the photon energy of the generated harmonics is controllable within the range of 1 eV. The shift of the frequency peak position is rooted in the asymmetry of the rising and falling parts of the laser pulse. We also show that by varying the phase parameters in the frequency domain of the laser one can adjust and control the shift in atomic harmonic spectra.

关键词: high-order harmonic generation, spectra shift

Abstract: High-order harmonic generation (HHG) from an atom illuminated by a sinusoidally phase-modulated pulse is investigated by solving the time-dependent Schrödinger equation. The spectral shift that occurs in atomic HHG can be achieved easily using our laser pulse. It is shown that the photon energy of the generated harmonics is controllable within the range of 1 eV. The shift of the frequency peak position is rooted in the asymmetry of the rising and falling parts of the laser pulse. We also show that by varying the phase parameters in the frequency domain of the laser one can adjust and control the shift in atomic harmonic spectra.

Key words: high-order harmonic generation, spectra shift

中图分类号: (Frequency conversion; harmonic generation, including higher-order harmonic generation)

42.65.Ky

98.62.Py (Distances, redshifts, radial velocities; spatial distribution of galaxies)

Yue Qiao(乔月), Jun Wang(王俊), Yan Yan(闫妍), Simeng Song(宋思蒙), Zhou Chen(陈洲), Aihua Liu(刘爱华), Jigen Chen(陈基根), Fuming Guo(郭福明), and Yujun Yang(杨玉军). Tunable spectral shift of high-order harmonic generation in atoms using a sinusoidally phase-modulated pulse[J]. 中国物理B, 2022, 31(6): 64214-064214.

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Tunable spectral shift of high-order harmonic generation in atoms using a sinusoidally phase-modulated pulse

Tunable spectral shift of high-order harmonic generation in atoms using a sinusoidally phase-modulated pulse

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