Dr. Demitry (Dima) Farfurnik is an Assistant Professor of Electrical and Computer Engineering and Physics at North Carolina State University. Farfurnik completed his Ph.D. in Physics at the Hebrew University of Jerusalem. Prior to joining NC State, he was a Postdoctoral Associate at the University of Maryland, College Park. His research focuses on the studies of fundamental science and development of novel quantum technologies utilizing optically-active spin systems in the solid-state such as quantum dots and color centers.
Presentation Title:
Optical Characterization of Novel Materials for Spin Qubits
Presentation Abstract:Â
Spin qubits in the solid-state are promising platforms for scalable quantum information processing and networking. In this talk, I will present all-optical techniques for characterizing materials that host promising spin qubits. In the first part of the talk, I will describe a novel all-optical approach for spectrally characterizing noise sources that lead to the decoherence of optically-active spin qubits, and demonstrate its implementation on single spins in self-assembled InAs/GaAs quantum dots. Our approach could enable the optimization of material quality for enabling efficient spin-photon interfaces for quantum networking. In the second part of the talk, I will present our recent measurements of photoluminescence from GeSn heterostructures using Fourier-Transform Infrared Spectroscopy. The studied heterostructures can serve as hosts for novel light hole spin qubits in gate-defined quantum dots for scalable quantum computing.Â