Temporal Behaviour of Harmonics from One-Dimensional H+2 in an Ultrashort Laser Pulse
QU Wei-Xing1, XIA Yu-Xing2, GAN Ming-Long3, LI Ru-Xin1, XU Zhi-Zhan1
1Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
2Applied Physics Department, Shanghai Jiao Tong University, Shanghai 200030
3Department of Computer Science and Technology, Shanghai Jiao Tong University, Shanghai 200030
Temporal Behaviour of Harmonics from One-Dimensional H+2 in an Ultrashort Laser Pulse
1Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
2Applied Physics Department, Shanghai Jiao Tong University, Shanghai 200030
3Department of Computer Science and Technology, Shanghai Jiao Tong University, Shanghai 200030
Abstract： With the method of wavelet transform, we consider the temporal
behaviour of high-order harmonic generation from one-dimensional H+2 exposed to an ultrashort laser pulse with a duration of tens of femtoseconds. The results, which are calculated by numerically solving the corresponding time-dependent Schrödinger equation with the split-operator method in the non-Born-Oppenheimer approach, show that: (1) The high-order harmonics in the cut-off range emitted as a train of pulses have better coherence than those in the plateau. (2) The harmonics are emitted early in time when the intensity of laser pulse increases.
(Frequency conversion; harmonic generation, including higher-order harmonic generation)
引用本文:
QU Wei-Xing;XIA Yu-Xing;GAN Ming-Long;LI Ru-Xin;XU Zhi-Zhan. Temporal Behaviour of Harmonics from One-Dimensional H+2 in an Ultrashort Laser Pulse[J]. 中国物理快报, 2001, 18(8): 1050-1052.
QU Wei-Xing, XIA Yu-Xing, GAN Ming-Long, LI Ru-Xin, XU Zhi-Zhan. Temporal Behaviour of Harmonics from One-Dimensional H+2 in an Ultrashort Laser Pulse. Chin. Phys. Lett., 2001, 18(8): 1050-1052.
2001, Vol. 18 
