DIADEMS · DIAmond Devices Enabled Metrology and Sensing

The DIADEMS project aims at exploiting the unique physical properties of NV color centres in ultrapure single-crystal CVD-grown diamond to develop innovative devices with unprecedented performances for ICT applications. By exploiting the atom-like structure of the NV that exhibits spin dependent optical transitions, DIADEMS will make optics-based magnetometry possible.The objectives of DIADEMS are to develop- Wide field magnetic imagers with 1 nT sensivities,- Scanning probe magnetometer with sensitivity 10 nT and spatial resolution 10 nm,- Sensor heads with resolution 1 pT.<br/>To reach such performances, DIADEMS will:- Use new theoretical protocols for sensing,- Develop ultrahigh purity diamond material with controlled single nitrogen implantation with a precision better than 5 nm,- Process scanning probe tips with diametre in the 20 nm range,- Transfer them to AFM cantilever, improve the emission properties of NV by coupling them with photonic cavities and photonic waveguides.<br/>DIADEMS outputs will demonstrate new ICT functionalities that will boost applications with high impact on society:- Calibration and optimization of write/read magnetic heads for future high capacity (3 Tbit per square inch) storage disk required for intense computing,- Imaging of electron-spin in graphene and carbon nanotubes for next generation of electronic components based on spintronics,- Non-invasive investigation of living neuronal networks to understand brain function,- Demonstration of magnetic resonance imaging of single spins allowing single protein imaging for medical research.<br/>DIADEMS aims at integrating the efforts of the European Community on NV centres to push further the limits of this promising technology and to keep Europe's prominent position.