Colloquium: Dr. Birol Ozturk, Morgan State University

Nitrogen vacancy (NV) color centers in diamond have recently drawn considerable attention as possible qubit candidates that can operate at room temperature as opposed to other leading quantum systems such as ion traps and superconducting qubits. Point defects in other wide bandgap semiconductors are also emerging as promising solid-state hosts for quantum device applications analogous to NV color centers in diamond. Paradigm shifting device functionality may be achieved if the quantum properties of point defects in this rich domain of materials are further explored. Recent results on quantum sensing experiments with defects in diamond and other wide bandgap semiconductors will be presented. More specifically, the following topics will be covered: 1) Coplanar radio frequency (RF) antenna design and fabrication process for quantum sensing with optically detected magnetic resonance (ODMR) method, 2) Nanotesla level ODMR magnetic field sensing with NV color centers in bulk diamond, 3) Preliminary experiments with nanodiamond crystals for action potential detection from individual neuron cells, 4) Room temperature zero phonon line emission from defects in 3C silicon carbide and cubic boron nitride crystals, and 5) Optical characterization of 2D transition metal dichalcogenide (TMD) samples.