期刊
OPTICS LETTERS
卷 41, 期 4, 页码 709-712出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.41.000709
关键词
-
类别
资金
- Deutsche Forschungsgemeinschaft (DFG) [PF 790/1-1]
- European Research Council (ERC) [X-MuSiC-616783]
- Engineering and Physical Sciences Research Council (EPSRC) [EP/G055416/1]
- Engineering and Physical Sciences Research Council [EP/G055416/1] Funding Source: researchfish
- EPSRC [EP/G055416/1] Funding Source: UKRI
Noncollinear four-wave-mixing (FWM) techniques at near-infrared (NIR), visible, and ultraviolet frequencies have been widely used to map vibrational and electronic couplings, typically in complex molecules. However, correlations between spatially localized inner-valence transitions among different sites of a molecule in the extreme ultraviolet (XUV) spectral range have not been observed yet. As an experimental step toward this goal, we perform time-resolved FWM spectroscopy with femtosecond NIR and attosecond XUV pulses. The first two pulses (XUV-NIR) coincide in time and act as coherent excitation fields, while the third pulse (NIR) acts as a probe. As a first application, we show how coupling dynamics between odd- and even-parity, inner-valence excited states of neon can be revealed using a two-dimensional spectral representation. Experimentally obtained results are found to be in good agreement with ab initio time-dependent R-matrix calculations providing the full description of multielectron interactions, as well as few-level model simulations. Future applications of this method also include site-specific probing of electronic processes in molecules. (C) 2016 Optical Society of America
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据