University of Würzburg

PhD position - Topological laser arrays based on quantum wells and quantum dots

University of Würzburg

Würzburg, Germany

The Chair of Technische Physik at the University of Würzburg, Germany invites applications for a

PhD position

Topological laser arrays based on quantum wells and quantum dots

We seek for an excellent PhD candidate at the Chair of Applied Physics lead by Prof. Dr. Sven Höfling, Faculty of Physics and Astronomy, at the Julius-Maximilians University in Würzburg, Germany. The project involves theoretical studies and experimental research of new concepts having to do with topological laser arrays based on resonant gain and excitonic effects in quantum wells and quantum dots. The students will work to realize and characterize settings of coupled semiconductor ring laser arrays for the realization of topologically protected lasers. Here, we will use quantum wells and quantum dots as active material in group-III-arsenides and -phosphides. On daily basis the work is supervised by topological photonics group leader Dr. Sebastian Klembt.

The candidate is expected to lead the experimental realization of this novel laser system, including the optimization and development of the clean room sample micro-fabrication as well as the spectroscopic investigation. The project is accompanied by co-supervision and theoretical support from the group of Prof. Mordechai (Moti) Segev from Technion in Haifa, Israel, and the student is expected to spend part of the time with the Segev group at the Technion.

We are looking for excellent students with a background in experimental laser physics or optics and preferably clean room experience who have demonstrated originality and productivity in research, who are qualified to start a PhD program in physics. Salary is set by the Tarifvertrag für den öffentlichen Dienst der Länder (TV-L E13) and the position is 2/3 of full time. The PhD candidate has access to structured PhD programs and collaborative research programs like the Elite Network of Bavaria Doctorate Program Topological Insulators and the `Center of Excellence – Complexity and Topology in Quantum Matter (ct.qmat)’.

The University of Würzburg is an equal opportunity employer. Thus, all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or age. Please submit your complete application documents (cover letter, CV, list of publications, possibly recommendation letters) by email as one, single, attached .pdf file (no more than 10 MB) to Prof. Sven Höfling (

PI/Person of contact:

Prof. Dr. Sven Höfling:, Room AU26, Tel.: +49 931-31-83613

Dr. Sebastian Klembt:, Room A027, Tel.: +49 931-31-85980


Apply with CV and Cover Letter

Must be a .doc, .docx, or .pdf file and no larger than 1MBMust be a .doc, .docx, or .pdf file and no larger than 1MB

PhD position - Topological laser arrays based on quantum wells and quantum dots