Nanoparticle and chemical sensors using optical microcavities

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The development of quantum technologies produces high precision instrumentation and components that can benefit a wide range of applications. In this project we use miniature optical resonators, developed for quantum communications and computing, to sense nanoparticles and chemicals. The ability to measure and analyse chemicals and nanoscale particles in fluids is of increasing importance to the modern world. Blood tests, screening for allergens and contaminants in food, developing new medicines for cancer treatment, or measuring air quality in buildings and vehicles are all applications for which high performance sensors are required with sensitivity to minute quantities of material. The ‘quantum’ resonators offer a step change in performance compared to existing devices. A new spin-out company from the University of Oxford, HighQ Instruments Ltd, is being set up both to develop the sensors and to market resonator components to the quantum technologies and photonics industries. This Innovate UK project will provide support for the construction of the first prototype for a nanoparticle sensor product, and for a parallel R&D programme to advance the technology and develop chemical sensors for a range of applications.