**In order to fill a fixed-term position in full-time (39.83 hours/week = 100%) at the earliest possible date, we are looking for 1**

### Postdoc (m/f/x)

The Molecular Beam Epitaxy section, within the Spectroscopy of Condensed Matter Group, is seeking a highly motivated postdoc to join our team. You will be a key scientific contributor to the PHOQUS project—a prestigious ERC Synergy initiative dedicated to experimentally demonstrating that quantum dots are essential for scalable photonic quantum computation. Our research sits at the intersection of fundamental solid-state physics, advanced material science, and the engineering of next-generation semiconductor devices.

As an advanced researcher within the PHOQUS team, you will contribute significantly to the development of novel nanostructures tailored for quantum-photonic architectures. You will drive the technical development of our epitaxy systems, integrating innovative hardware components designed to unlock new growth regimes for next-generation quantum materials. In this role, you will bridge the gap between theoretical physics and experimental hardware reality while providing technical guidance and support to the research team.

Scope: full-time
Duration: fixed-term, 2 years
Start: at the earliest possible date
Apply by: 2026-06-07

**Your tasks:**

You will take on an advanced scientific position within the PHOQUS project, transitioning from an expert to a specialist in quantum semiconductor technology. Your responsibilities include:

- Advanced Design & Engineering: Playing a leading role in the architectural design of complex semiconductor heterostructures. You will translate the synergy's high-level quantum-photonic goals into viable epitaxial designs for next-generation devices.
- Frontier Synthesis: Advancing the limits of high-quality growth using state-of-the-art Molecular Beam Epitaxy (MBE). You will be responsible for exploring unconventional growth regimes to ensure the material quality meets the high demands of the PHOQUS project.
- Scientific Coordination: Overseeing multi-modal characterization (morphological, optical, and electronic). You will perform measurements and synthesize complex data sets to contribute to the theoretical and experimental direction of the project partners.
- Technical Innovation: Developing novel epitaxial methods and designing bespoke hardware upgrades. You will contribute to the implementation of innovative modules (e.g., in-situ monitoring, novel source designs, or means for positioning quantum emitters) to achieve unprecedented quantum dot-based photonic materials.
- Infrastructure Support & Knowledge Transfer: Contributing to the operational excellence of the MBE facility. This includes the setup and calibration of ultrahigh-vacuum equipment and the technical support of doctoral researchers, ensuring a high-level transfer of expertise within the laboratory environment.

**Your profile:**

- Mindset: We are looking for an ambitious researcher with a strong "can-do" attitude who is dedicated to scientific excellence and technical evolution.
- Education: A PhD in physics, material science, or a related field, with a clear focus on experimental solid-state physics or semiconductor technology.
- Expertise: You possess a profound technical background in MBE and/or advanced laser systems. A solid command of ultra-high vacuum technology is an essential requirement. We welcome experts from either discipline who are eager to bridge the gap between material synthesis and quantum photonics.
- Technical Creativity: You have a demonstrated ability to design and implement custom hardware solutions. You are comfortable with both technical engineering and complex data analysis.
- Collaboration & Communication: You are highly organized and capable of collaborating effectively within an international synergy. Excellent English communication skills are a must for interfacing with research groups and providing guidance to the team.
- Commitment: You enjoy taking ownership of experimental setups and thrive on the challenge of developing and maintaining sophisticated laboratory infrastructure.

[https://jobs.ruhr-uni-bochum.de/jobposting/92fbb4f230f5f647da9a7b02afb65175a63e52530?ref=AfA](https://jobs.ruhr-uni-bochum.de/jobposting/92fbb4f230f5f647da9a7b02afb65175a63e52530?ref=AfA)