In order to fill a fixed-term position in part-time (26,6861 hours/week = 67%) starting before 31.12.2025, we are looking for 1

PhD student (m/f/x)

The Petersen Group (Nonlinear Infrared Spectroscopy Group) at the Ruhr University, Bochum is seeking a PhD student to perform heterodyned 2-dimensional sum-frequency generation (2D SFG) spectroscopy of various surfaces to probe interfacial water dynamics as a function of the surface chemistry. This method combines the advantages of two-dimensional infrared (2D IR) spectroscopy and SFG spectroscopy to capture ultrafast spectral diffusion dynamics of molecules with the surface-specificity of SFG. Several different surfaces will be investigated to map out how the surface chemistry influences the ultrafast interfacial water dynamics. The advanced nonlinear spectroscopic method is facilitated by a new 100 kHz Yb-based OPCPA laser system. The position involves a significant amount of experimental development so a strong background in laser spectroscopy, ultrafast spectroscopy, and/or nonlinear optics is preferred. Furthermore, some chemical preparation work will be involved.

Scope: part-time
Duration: fixed-term, 3 years
Start: starting before 31.12.2025
Apply by: 2025-06-30

Your tasks:

Setting up and performing 2D SFG and other experiments of various surfaces
Chemical functionalization of surfaces
Spectroscopic measurements, data analysis, and interpretation
Taking active part in science communication, both locally and globally
Taking part in a multidisciplinary team
Taking part in normal group responsibilities

Your profile

Master degree in physical chemistry or related field. Candidates who are close to completion at the application time will be considered given that the master degree will be completed before starting the position.
Strong background in laser spectroscopy, ultrafast spectroscopy, and/or nonlinear optics.
Good communication and writing skills in English
Good team player