超流氦纳米液滴中D$_2$分子的飞秒转动动力学
原子与分子团簇
2022-06-29 v1
摘要
氦纳米液滴内D分子的转动动力学由中等强度的飞秒（fs）泵浦脉冲诱导，并通过记录HeD离子的产额作为时间的函数进行测量，该离子由延迟的fs探测脉冲通过强场解离电离产生。产额以185 fs为周期振荡，反映了无场转动波包动力学，且该振荡持续超过500个周期。在实验不确定度内，通过傅里叶分析确定的液滴内D分子的转动常数BHe与孤立D分子的Bgas相同。我们的观测表明，氦纳米液滴内的D分子本质上如同自由D分子一样转动。
引用
@article{arxiv.2201.09281,
title = {Femtosecond rotational dynamics of D$_2$ molecules in superfluid helium nanodroplets},
author = {Junjie Qiang and Lianrong Zhou and Peifen Lu and Kang Lin and Yongzhe Ma and Shengzhe Pan and Chenxu Lu and Wenyu Jiang and Fenghao Sun and Wenbin Zhang and Hui Li and Xiaochun Gong and Ilya Sh. Averbukh and Yehiam Prior and Constant A. Schouder and Henrik Stapelfeldt and Igor N. Cherepanov and Mikhail Lemeshko and Wolfgang Jäger and Jian Wu},
journal= {arXiv preprint arXiv:2201.09281},
year = {2022}
}