原子与分子物理学报2017，Vol.34Issue(5)：908-914,7.DOI:10.3969/j.issn.1000-0364.2017.05.017
飞秒激光脉宽对三态阶跃型分子波包运动的影响研究
Effect of femotosecond laser pulse width on wavepacket motion of three-level ladder Molecule
摘要
Abstract
The dependence of the wave packet process of three-level ladder K2 molecules on pulse width was in-vestigated via time-dependent wave packet method. There is no Autler-Townes splitting in the photoelectron spectrum with weaker pump intensity or shorter pulse width. The oscillation period of wave packet increases with increasing pulse width, while the oscillation amplitude decreases with increasing pulse width. The pulse width af-fects Rabi oscillation, which leads to the periodical change of the populations of the electronic state. The effect of pulse width on the population of the excited state was quantified firstly, showing that the change frequency varies with increasing pump intensity. The results illustrate that the selective population of electronic state can be ob-tained by controlling pulse width, which provide some important bases for light manipulation of molecular proces-ses experimentally.关键词
分子物理学/波包运动/含时波包法/三态阶跃型K2分子/光电子能谱/态布居数Key words
Molecular physics/Wave packet motion/Time-dependent wave packet approach/Three-state ladder K2 molecules/Photoelectron spectra/State populations分类
数理科学引用本文复制引用
郭玮,常志强,王怡,路兴强..飞秒激光脉宽对三态阶跃型分子波包运动的影响研究[J].原子与分子物理学报,2017,34(5):908-914,7.基金项目
国家自然科学基金(11447020) （11447020）
湖南省自然科学基金(2015JJ3104) （2015JJ3104）
湖南省教育厅基金(15B204) （15B204）
