自电离氦氖二聚体的极紫外波包干涉测量法。

Extreme Ultraviolet Wave Packet Interferometry of the Autoionizing HeNe Dimer.

作者信息

Uhl Daniel, Wituschek Andreas, Michiels Rupert, Trinter Florian, Jahnke Till, Allaria Enrico, Callegari Carlo, Danailov Miltcho, Di Fraia Michele, Plekan Oksana, Bangert Ulrich, Dulitz Katrin, Landmesser Friedemann, Michelbach Moritz, Simoncig Alberto, Manfredda Michele, Spampinati Simone, Penco Giuseppe, Squibb Richard James, Feifel Raimund, Laarmann Tim, Mudrich Marcel, Prince Kevin C, Cerullo Giulio, Giannessi Luca, Stienkemeier Frank, Bruder Lukas

机构信息

Institute of Physics, University of Freiburg, Hermann-Herder-Str. 3, 79104 Freiburg, Germany.

Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany.

出版信息

J Phys Chem Lett. 2022 Sep 15;13(36):8470-8476. doi: 10.1021/acs.jpclett.2c01619. Epub 2022 Sep 2.

DOI:10.1021/acs.jpclett.2c01619

PMID:36054027

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9486932/

Abstract

Femtosecond extreme ultraviolet wave packet interferometry (XUV-WPI) was applied to study resonant interatomic Coulombic decay (ICD) in the HeNe dimer. The high demands on phase stability and sensitivity for vibronic XUV-WPI of molecular-beam targets are met using an XUV phase-cycling scheme. The detected quantum interferences exhibit vibronic dephasing and rephasing signatures along with an ultrafast decoherence assigned to the ICD process. A Fourier analysis reveals the molecular absorption spectrum with high resolution. The demonstrated experiment shows a promising route for the real-time analysis of ultrafast ICD processes with both high temporal and high spectral resolution.

摘要

飞秒极紫外波包干涉测量法（XUV-WPI）被用于研究氦氖二聚体中的共振原子间库仑衰变（ICD）。使用一种XUV相位循环方案满足了对分子束靶的振动XUV-WPI的相位稳定性和灵敏度的高要求。检测到的量子干涉呈现出振动去相和再相特征，以及归因于ICD过程的超快退相干。傅里叶分析揭示了高分辨率的分子吸收光谱。所展示的实验为具有高时间和高光谱分辨率的超快ICD过程的实时分析提供了一条有前景的途径。