Project Details
Projekt
Attosecond spectroscopy in the liquid phase
Applicant
Professor Dr. Reinhard Kienberger
Subject Area
Experimental Condensed Matter Physics
Term
from 2015 to 2019
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 281242003
The goal of the present proposal is to extend attosecond time-resolved spectroscopy to the liquid phase. Whereas attosecond spectroscopy in the gas phase is well established by now and first promising attosecond experiments have been performed on solids, the liquid phase has remained entirely unexplored on the attosecond time scale. However, the liquid phase is the natural environment of most chemical and biological processes. Therefore, the extension of the tools of attosecond spectroscopy to the liquid phase is an essential step in understanding the role of electronic dynamics in chemical and biological processes. Solvation of molecules is known to modify their electronic structure. Hence electronic dynamics of solvated molecules will almost certainly differ from that of gas-phase molecules. The liquid phase also offers unique dynamics compared to the gas phase such as the dynamics of the solvated electrons including its formation, relaxation and tunneling dynamics. This proposal will focus on demonstrating the attosecond streak camera on a liquid target with the goal of measuring attosecond photoionization delays from water and solvated species and to compare them with the corresponding gas-phase delays. These studies will be followed by measurements of the dynamics of formation and relaxation of the solvated electron using infrared (IR), ultraviolet (UV) and extreme-ultraviolet (XUV) pulses, all with few- to single-cycle durations.
DFG Programme
Priority Programmes
International Connection
Switzerland
Partner Organisation
Schweizerischer Nationalfonds (SNF)
Co-Investigator
Professor Dr. Hans Jakob Wörner
