Faculty of Natural Sciences

Paderborn University is a high-performance and internationally oriented university. Within interdisciplinary teams, we undertake forward
- looking research, design innovative teaching concepts and actively transfer knowledge into society. As an important research and cooperation
partner, the university also shapes regional development strategies. We offer our employees in research, teaching, technology and
administration a lively, family-friendly and equal opportunity environment, a lean management structure and diverse opportunities. Join us to
invent the future

In the Faculty of Science - Department of physics, group Integrated Quantum Optics - the following position is to be filled as soon as possible

PhD position (f/m/d)
(salary level according to 13 TV-L)

with 75 % of the regular working hours. This is a temporary position initially until 31st Dezember 2028 due to third-party funding within the
meaning of the Wissenschaftszeitvertragsgesetz (WissZeitVG), which serves to support a PhD procedure. The position is limited for the project
duration. There is an opportunity for a doctorate/ further scientific qualification.

Field of activity:

- The goal of the project is the fabrication of integrated optical components in lithium niobate tantalate mixed crystals and related

material systems. This includes the fabrcation and optimization of optical waveguides, the fabrication and optimization of periodic
poling, and subsequent optical characterization, such as measuring optical transmission losses in optical waveguides in lithium
niobate tantalate mixed crystals.
- The project is part of the DFG Research Group FOR5044, which spans 9 projects across multiple institutions and universities in

Germany. The FOR5044 is dedicated to the investigation and production of novel mixed crystals of lithium niobate tantalate, which
- Teaching duties typically range from 3 hours per week.

Recruitment requirements:

- A scientific university degree (Master) in physics, materials science, or a comparable field.
- Willingness to work in a cleanroom.
- Very good English language skills (spoken and written).
- Experience and knowledge in one or more of the following fields are desirable:

- Experience and knowledge of integrated optical components, especially their fabrication.
- Experience and knowledge of lithographic processes, e.g., photolithography or electron beam lithography.
- Experience with lithium niobate or other ferroelectrics, especially their poling.
- Experience working in a cleanroom environment.

We offer:

- Flexible working hours and the individual option of mobile working
- Wide range of health, counseling and prevention services
- Attractive fringe benefits such as childcare facilities and sports activities
- Opportunities for internal and external training and development
- Additional benefits in accordance with the collective agreement of the federal states (TV-L), such as annual bonuses and capital-forming

benefits as well as the VBL supplementary pension scheme

Applications from women are particularly welcome and, in case of equal qualifications and experiences, will receive preferential treatment
according to to state law (LGG), unless there are preponderant reasons to give preference to another applicant. Part-time employment is
generally possible. Applications from disabled people with appropriate suitability are explicitly welcome. This also applies to people with equal
opportunities in accordance with the German social law SGB IX.

Information regarding the processing of your personal data can be located at:
Prof. Dr. Christine Silberhorn
Department of Physics - Integrated Quantum Optics
Institut für Photonische Quantensysteme (PhoQS)
Paderborn University
Warburger Str. 100
33098 Paderborn