FINAL PUBLISHABLE REPORTGrant Agreement • December 6th, 2022
Contract Type FiledDecember 6th, 2022This project addressed the emerging technologies for temperature sensing, particularly in scope of precise temperature measurements up to nano-scale level and in scope of their application for future dissemination of the kelvin following its re-definition in 2018. During this project, different photonic and optomechanical systems were designed, fabricated, and characterised. Calibration methods have been developed to ensure the traceability to the International Temperature Scale of 1990 (ITS-90). Photonic sensors aim at overcoming standard platinum resistance thermometers (SPRTs) drawbacks (drift, low spatial resolution, sensitivity to mechanical shocks, electromagnetic and chemical environments), while optomechanical sensors aim at providing a quantum standard for primary thermometry. This project provided a systematic study (including an uncertainty budget) of these sensors, pointing out their potential, limitations and perspectives.