报告题目: Single-Quantum-Dot Devices for Photonic Quantum Technologies

报告摘要: The development of solid-state quantum emitters for practical quantum information technologies requires nanofabrication platforms that combine high precision with reproducible yield. Self-assembled semiconductor quantum dots (QDs) are among the most promising candidates due to their excellent optical properties. Yet, their inherently random spatial and spectral distribution poses a significant challenge for deterministic and scalable device integration using conventional lithography techniques. In this talk, I present a flexible and deterministic nanofabrication approach that combines low-temperature cathodoluminescence spectroscopy with high-resolution electron beam lithography. This iEBL technique enables highly precise positioning of single QDs within complex photonic nanostructures to maximize the device performance for instance in terms of the photon extraction efficiency and the Purcell effect. I will discuss the iEBL process and its role as an advanced technology platform for single-emitter devices, emphasizing its capability for scalable, high-yield fabrication.

报告人简介：Professor Reitzenstein received his Ph.D. in physics summa cum laude from the University of Würzburg in Germany in 2005. In 2010, he began studying the optical properties of low-dimensional semiconductor systems. Since September 2011, he has been a full professor at the Technical University of Berlin in Germany. He holds the chair of optoelectronics and quantum devices and is the director of the Center of Nanophotonics at TU Berlin. His current research interests lie in quantum nanophotonics. This includes developing quantum light sources for use in photonic quantum technologies. Professor Reitzenstein is a member of the German Physical Society and Optica.

主持联系人：许秀来(Tel: 62750683)

科学前沿报告会(687)