Postdoc Ultrafast Spectroscopy on 2D Materials for Quantum Photonics

Pump-probe optical and terahertz spectroscopy on dynamics of excitons and charge carriers in 2D materials for single-photon emitters.

Job description

The ultimate aim of the project is to develop defect-based single-photon emitters in 2D transition metal dichalcogenides (TMDCs) for quantum photonic applications. The project is a collaboration with two PhD students at the University of Amsterdam (UvA) where samples and photonic devices will be prepared.

You will perform fundamental studies on the formation, motion and decay dynamics of photogenerated charge carriers and excitons. For single-photon emitters these species need to travel to intentionally created defects sites in the materials, such as atomic vacancies and local strain.

You use ultrafast pump-probe laser spectroscopy with optical (TA, PL) and terahertz conductivity detection to monitor the charge and exciton dynamics and the formation of excitons at the defects where they should decay by single-photon emission.

Depending on your experience and interests involvement in computational modelling (DFT/GW/BSE) of charge carriers and excitons is an option.

This fundamental project will be in collaboration with two industrial partners, Toyota Motor Europe and Quix, the latter being a leading photonic quantum computing startup providing photonic integrated circuits (PICs).

Job requirements

• You have a relevant university degree in physics, materials science or chemistry and experience with ultrafast pump-probe laser spectroscopy.

• PhD degree, experience with ultrafast laser spectroscopy.

TU Delft (Delft University of Technology)

Working at TU Delft means contributing to solutions that really make a difference.

For over 180 years, we have been training engineers who make an impact worldwide in companies, government bodies, or as entrepreneurs. Our alumni turn knowledge into concrete solutions for the challenges of today and tomorrow. These challenges are changing rapidly. That is why we focus on themes such as energy, climate, digitalisation, artificial intelligence (AI), and smart mobility every day. Our education and research are directly aligned with what society needs now and in the future.

At TU Delft, our people make the difference. With their knowledge and curiosity, our staff provide a high-quality education and conduct pioneering research that extends beyond the campus. You will have the opportunity to take the initiative, work with others, and grow as a professional. Working at TU Delft means join an international community of professionals and students. Together, we create knowledge, innovations, and solutions that help move the world forward.

Faculty Applied Sciences

With more than 1,100 employees, including 150 pioneering principal investigators, as well as a population of about 3,600 passionate students, the Faculty of Applied Sciences is an inspiring scientific ecosystem. Focusing on key enabling technologies, such as quantum- and nanotechnology, photonics, biotechnology, synthetic biology and materials for energy storage and conversion, our faculty aims to provide solutions to important problems of the 21st century. To that end, we educate innovative students in broad Bachelor's and specialist Master's programmes with a strong research component. Our scientists conduct ground-breaking fundamental and applied research in the fields of Life and Health Science & Technology, Nanoscience, Chemical Engineering, Radiation Science & Technology, and Engineering Physics. We are also training the next generation of high school teachers.

Click  here  to go to the website of the Faculty of Applied Sciences.

Conditions of employment

• Duration of contract is 1,5 years. Temporary external finance.

• A job of 38-40 hours per week.

• Salary and benefits are in accordance with the Collective Labour Agreement for Dutch Universities.

• An excellent pension scheme via the ABP.

• The possibility to compile an individual employment package every year.

• Discount with health insurers on supplemental packages.

• Flexible working week.

• Every year, 232 leave hours (at 38 hours). You can also sell or buy additional leave hours via the individual choice budget.

• Plenty of opportunities for education, training and courses.

• Partially paid parental leave

• Attention for working healthy and energetically with the vitality program.

Will you need to relocate to the Netherlands for this job? TU Delft is committed to make your move as smooth as possible! The HR unit, Coming to Delft Service , offers information on their website to help you prepare your relocation. In addition, Coming to Delft Service organises events to help you settle in the Netherlands, and expand your (social) network in Delft. A Dual Career Programme is available, to support your accompanying partner with their job search in the Netherlands.  .

Additional information

If you would like more information about this vacancy or the selection procedure, please contact Prof. Dr. Laurens D.A. Siebbeles, via l.d.a.siebbeles@tudelft.nl .

Application procedure

Are you interested in this vacancy? Please apply no later than 15 November 2026  via the application button and upload the following documents:

• CV

• Motivational letter

If the applicants are selected for an interview, they will be asked to provide contact details of two referees with their consent.

You can address your application to Prof. Dr. Laurens D.A. Siebbeles.

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