Description: Nanofabrication of diamond photonic-crystal cavities, waveguides, and phononic resonators coupled to silicon-vacancy or nitrogen-vacancy color centers to realize integrated spin-photon and spin-phonon quantum interfaces.
The de Leon lab engineers nitrogen-vacancy and other color centers in diamond and wide-bandgap materials as solid-state quantum sensors and qubits, spanning materials growth and surface chemistry, nanophotonic integration, and magnetic-field/thermal sensing of quantum materials, alongside a parallel effort on superconducting qubit noise and loss. This builds on the broader tradition of ensemble NV magnetometry (DEER, NMR, T1 relaxometry) that has reached pT/sqrt(Hz)-class sensitivities, which de Leon's group extends toward single- and few-spin scanning-probe magnetometry of correlated electron materials.
LonΔar's Laboratory for Nanoscale Optics engineers diamond and lithium-niobate nanophotonic devices β including silicon-vacancy (SiV) color-center spin-photon interfaces, entangled quantum memories, and remote entanglement-assisted phase-sensing protocols that beat the standard measurement limit β alongside quantum optomechanical control of single spins via engineered acoustic resonators, directly extending the NV/SiV-diamond quantum-sensing lineage toward chip-integrated, networked quantum-enhanced sensing.
Sipahigil leads the Berkeley Quantum Devices Group, which integrates diamond and silicon-carbide color-center spin qubits with nanophotonic cavities to build quantum networks and solid-state quantum sensors, spanning superconducting circuits to color-center-based quantum memories. The group is actively recruiting postdocs.
Vuckovic's lab uses inverse-designed nanophotonic cavities and waveguides to couple diamond (NV/SiV) and other solid-state spin defects to light, building integrated quantum photonic devices for quantum sensing, networking, and single-photon sources.