Temporal Behaviour of Harmonics from One-Dimensional H2+ in an UltrashortLaser Pulse

屈卫星; 李儒新; 徐至展; 夏宇兴; 甘明龙

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Temporal Behaviour of Harmonics from One-Dimensional H2+ in an UltrashortLaser Pulse

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With the method of wavelet transform, we consider the temporal behaviour of high-order harmonic generationfrom one-dimensional H2+ 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 Schrodinger 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 the laser pulse increases.

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《中国物理快报：英文版》 |2001年第8期|1050-1052|共3页
作者
屈卫星; 李儒新; 徐至展; 夏宇兴; 甘明龙;
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作者单位

Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences, Shanghai 201800;

Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences, Shanghai 201800;

Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences, Shanghai 201800;

Applied Physics Department, Shanghai Jiao Tong University, Shanghai 200030;

Department of Computer Science and Technology, Shanghai Jiao Tong University, Shanghai 200030;

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中图分类物理学;
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Temporal Behaviour of Harmonics from One-Dimensional H2+ in an UltrashortLaser Pulse

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