Richard Warburton

Postdoctoral Fellow position at the University of Basel in the Quantum Opto-Electronics Group (QOEG), led by Prof. Dr. Tomasz Smoleński in the Department of Physics, within the NCCR SPIN consortium. The project focuses on ultrafast, non-destructive readout of spin qubits in semiconductor quantum dots, a key step toward scalable quantum processors and future quantum technologies. The successful candidate will develop and implement dynamical optical Q-switching of superconducting resonators, conduct high-frequency opto-transport experiments at cryogenic temperatures, and design, build, and optimize experimental setups for optoelectronic measurements. The work is highly interdisciplinary and involves close collaboration with consortium partners, including the groups of Prof. Richard Warburton and Dr. Andreas Kuhlmann. Required background includes a completed or nearly completed PhD in Physics, Nanoscience, Electrical/Optical Engineering, or a related area; strong expertise in condensed matter physics; experience with quantum dot systems or superconducting circuits; high-frequency transport experience at low temperatures; and programming/data acquisition skills in Python, C++, or LabView. Strong publication and presentation record, teamwork, independence, innovation, and excellent English are emphasized. Experience with dilution refrigerators and ultrafast optical or pulsed laser systems is desirable. The position offers work in an international research environment with cutting-edge infrastructure, attractive employment conditions, and the opportunity to contribute directly to the NCCR SPIN consortium and the broader quantum technologies landscape. Applications must be submitted through the online recruiting tool and include a CV, motivation letter, publication list, conference presentations, and referee contacts. The position was published on 2026-07-15, and the listed application deadline is 2026-08-11.

PhD position in Nano Photonics with Fibre Cavities (P2605) at the University of Basel , Switzerland, in collaboration with the University of Applied Sciences and Arts Northwestern Switzerland. The project sits at the intersection of ultrafast laser technology , nanophotonics , quantum optics , and optical telecommunications . Two research groups are involved: the Photonic Ultrafast Systems Group led by Prof. Bojan Resan and the Nano-Photonics Group led by Prof. Richard Warburton . The work aims to develop micron-scale fibre cavities with excellent in-coupling and out-coupling efficiencies and designer nano-structured mirror profiles. Rapid and scalable nanofabrication will be explored via femtosecond laser ablation . The successful PhD candidate will work on generating and characterizing sub-micron Bessel beams, performing nano-machining trials on glass samples, optimizing laser parameters for mirror template design, building open micro-cavities with nano-machined fibres for quantum communications, and designing a micro-cavity femtosecond laser for high-data-rate telecommunications. The project offers a highly interdisciplinary environment spanning state-of-the-art ultrafast experiments in Windisch/Brugg and quantum optics experiments in Basel. The position is part of the Swiss Nanoscience Institute (SNI) PhD school , which supports around 30 scientists and provides a collaborative research environment, training in soft skills, social events, and a competitive Swiss PhD salary. The broader SNI community covers quantum physics and chemistry, nanotechnology, materials science, biochemistry, cell biology, and medical research. Eligibility: BS or MS degree in physics, photonics, engineering, or a related field; strong motivation for applied experimental laboratory work; experience with femtosecond lasers and/or quantum optics is advantageous; experience with Python, MATLAB, or other scientific programming/data analysis tools is also a plus; communication and teamwork skills are important. Application: Apply online via www.phd.nanoscience.ch or the direct application link. Questions may be directed to Dr. Andreas Baumgartner at [email protected] or to the project leaders. The vacancy can be filled any time from now, and the application must be completed by 31 December 2026 ; the posted deadline in the listing is 2026-10-15 .