PhD researcher (m/f/x) for machine learning enhanced infrared frequency comb spectroscopy

Experimental Physics V Spectroscopy of Atoms and Molecules by Laser Methods In order to fill a fixed-term position in part-time (29.8725 hours/week = 75%) at the immediately possible date, we are looking for 1

PhD researcher (m/f/x) for machine learning enhanced infrared frequency comb spectroscopy The chair for Experimental Physics V - Spectroscopy of Atoms and Molecules by Laser Methods at the Faculty of Physics and Astronomy, Ruhr University Bochum, investigates physicochemical processes in low and atmospheric pressure plasmas. The research is focused on the development and application of advanced laser-based diagnostics from UV to THz to characterize plasmas and their interaction with surfaces. The focus is on highly sensitive laser-based diagnostics using novel lasers in the mid- and far-infrared, including cavity-enhanced spectroscopy, frequency comb spectroscopy, and THz spectroscopy. The research covers the entire spectrum from basic research to applied research and research with industrial partners and includes strong collaborations on plasma modelling. Candidates join our team will contribute to innovative research at the forefront of plasma physics and chemistry as well as laser spectroscopy. We are looking for a highly motivated PhD researcher to work on a project on the use of infrared frequency comb spectroscopy enhanced by machine learning to, on the one hand, support the analysis of the broadband spectra obtained and, on the other hand, relate spectra, corresponding plasma parameters, and relevant process control parameters. The project is a collaboration between the Ruhr University Bochum, Professor Trieschmann of the Kiel University (CAU), both in Germany, and the company Oxford Instruments Plasma Technology, United Kingdom. The ideal candidate (m/f/x) will work with us on demonstrating the potential of machine learning enhanced infrared frequency comb spectroscopy for understanding and optimizing industrial plasma processes. The Ruhr-Universität Bochum is one of Germany's leading research universities, addressing the whole range of academic disciplines. A highly dynamic setting researchers and students to work across the traditional boundaries of academic subjects and faculties. To create knowledge networks within and beyond the university is Ruhr-Universität Bochum's declared aim.

Apply the frequency comb spectroscopy diagnostics to measure molecular species in low pressure plasmas related to industrial processes Develop and apply machine learning algorithms for data analysis and data-driven physics-constrained correlation mining To carry out detailed studies to elucidate relevant plasma-chemical processes and to identify key species in the plasma Determine spectroscopic parameters of plasma-relevant species Documentation and presentation of experimental results, including preparation of reports, publications, and contributions to group meetings and at national and international conferences. Involvement in national and international collaborations, research as well as industry

Master of Science (MSc) degree in physics, chemistry or related field Knowledge of plasma physics or laser spectroscopy would be an asset Experimental experience with laser absorption spectroscopy would be an advantage Knowledge of programming languages and analysis software (Matlab, Python, Origin, etc.) would be an advantage. Highly motivated and with the drive to advance scientific research in the field of plasma diagnostics and plasma chemistry A structured and independent approach to work with good communication and organisational skills High degree of commitment and dedication, flexibility, reliability, ability to work in a team, high performance orientation and problem-solving competence Good command of English (written and spoken); English is helpful but not required

Scope: part-time Duration: fixed-term, 3 years Start: at the soon possible date Apply by: 2026-04-19 We offer: Employment at one of the largest universities in Germany within the University Alliance Ruhr Challenging and varying tasks with a high degree of responsibility and independence The opportunity to make an innovative contribution Structured supervision and extensive training and further education opportunities Experienced and professional support Team-oriented work in a dedicated, international, respectful and appreciative team Access to Oxford Instruments collaborative research and development network connecting universities from across Europe. Secondment to OIPT's state-of-the-art facility in Bristol, UK if interested. Networking opportunities at national and international conferences and in cooperation with national and international research and industry partners Flexible and family-friendly working hours A job in the heart of the lively Ruhr metropolitan region with its diverse cultural offerings Further information: The position is salaried and based on the collective agreement of the countries (TV-L).If the staff and collective agreement requirements are met, the employee will receive pay grade E13 TV-L. Further information can be found at https://oeffentlicher-dienst.info/ (in German). The place of work is Ruhr University Bochum. If the position is funded by third-party funds the employee has no obligation.

RUB sees itself as a university with an international presence. The campus languages are German and English. Competence in at least one of the two languages and the willingness to learn the other are a preservation. RUB provides corresponding free courses for employees. German language courses are offered by the University Language Center (ZFA) in the field of German as a Foreign Language (DaF).https://www.daf.ruhr-uni-bochum.de/sbgk/index.html.en The Staff Council has the right to participate in all selection interviews. At the request of a candidate (m/f/x), it will ensure its participation in the entire procedure. The Ruhr-Universität Bochum stands for diversity and equal opportunities. For this reason, we favour a working environment composed of heterogeneous teams, and seek to promote the the individuals who are underrepresented in our respective professional areas. The Ruhr-Universität Bochum explicitly requests job applications from women. In areas in which You are underrepresented You will be given preference in the case of equivalent qualifications with male candidates. Applications from individuals with disabilities are most welcome. .