HIGH temPerature supercOnducting mIcro-resoNators for innovaTive Electron Paramagnetic Resonance – HIGHPOINT-EPR

Electron Paramagnetic Resonance (EPR) is a powerful spectroscopic technique introduced in the 1940s that enables the examination of systems containing unpaired electrons. This technique’s broad scope spans semiconductor analysis, structural biology and chemistry, quantum computing, dosimetry, or food quality assessment, captivating scientists from various domains. Conventional-EPR is however known for its weak sensitivity, making it very challenging or even impossible to work with small sample, with dimensions below mm (or typically a volume below a nanoliter).
In the last decades, the field of quantum-mK-EPR has emerged and developed. Sensitivity breakthroughs, including single-spin detection, has been demonstrated thank to working at milliKelvin temperature with low-loss superconducting microwave quantum circuits. These impressive advancements, operating exclusively at temperatures around the mK range, still require a significant amount of research and adaptation to be applicable in the vast domain of EPR applications, where temperature versatility is essential.
The Highpoint-EPR project aim is to bridge the gap between the conventional-EPR and quantum-mK-EPR domains, harnessing the strengths of both, namely temperature versatility and wide accessibility from conventional EPR, as well as high sensitivity and new measurement methodologies from quantum-mK-EPR.