期刊
CHINESE PHYSICS B
卷 31, 期 6, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1674-1056/ac2d1c
关键词
high-order harmonic generation; spectra shift
资金
- National Natural Science Foundation of China [11604119, 11627807, 11774129, 11774131, 11904120, 11975012, 91850114]
- Outstanding Youth Project of Taizhou University [2019JQ002]
In this study, high-order harmonic generation (HHG) from an atom illuminated by a sinusoidally phase-modulated pulse is investigated using the time-dependent Schrodinger equation. The results show that the photon energy of the generated harmonics can be controlled by adjusting the phase parameters, resulting in spectral shift.
High-order harmonic generation (HHG) from an atom illuminated by a sinusoidally phase-modulated pulse is investigated by solving the time-dependent Schrodinger 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.
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