In SiQUEST we aim to converge knowledge of single-photon emitter (SPE) defects, with ring resonators, waveguides and single photon avalanche detectors (SPAD), in a quest for a Si-based quantum sensing platform. Point defect based QT relies on two key characteristics: manipulation of the spin state of a defect and the SPE property. SPEs are promising for quantum sensing as the emission spectrum responds rapidly to minuscule changes in surrounding, like strain. To successfully integrate SPEs with sensing devices fabricated on the most important semiconductor platform, Si, we propose to develop aluminium nitride, which can be used both as an SPE host and as waveguide on top of a MEMS device. This will be combined with SPAD to form an on-chip platform for quantum sensing.
Hence, SiQUEST is converging several enabling technologies in a targeted effort to bring quantum technology to higher technology readiness levels, and at the same time form a platform for fundamental research into quantum emitters and SPE’s. The project comprises of 6 work packages, including 4 technical, one related to innovation and societal risks, and one for project management and dissemination. Converging all these technologies into one functional device is highly ambitious and with high risk, however, the reward even with only partial success on the ambition of SiQUEST is high, both for the partners, Norwegian industry and science in general. The research team consists of Sintef, University of Oslo, Kongsberg Discovery and Justervesenet. All with high strategic interest in developing quantum sensing as a field in Norway. Quantum technology is furthermore among the fields pointed to in both the national strategy for AI and in the European chips act, as key areas for further development.
ReSiQ provides reinforcement funding for SiQUEST and investigates, in collaboration with the FFI and Justervesenet, how the sensor platform can be adapted to defence-sector needs, particularly improved underwater situational awareness and navigation when GNSS is unavailable. ReSiQ will link the research more closely to operational needs through mapping, horizon scanning, simulations and MVP design.
