Quantum Dots and Color Centers as Examples of Functional Nanostructures

Quantum technologies are becoming one of the key pillars of modern science and engineering, paving the way for breakthrough solutions in fields such as communication, information processing, imaging, and metrology. Of particular importance are current studies on single-photon light sources compatible with existing telecommunication infrastructure, as well as on quantum materials that can be integrated with on-chip photonic platforms.

In this seminar, I will present the progress and results of my research work conducted since the beginning of my academic studies, including my PhD, focused on the optical characterization of quantum materials with potential applications in photonics and telecommunications. The first part of the talk will be devoted to the study of quantum dots emitting in the second and third telecommunication windows (approximately 1.3 μm and 1.55 μm). I will discuss the methods of their fabrication, the measurement techniques used, and the optical properties of these structures.

The second part of the seminar will cover preliminary results of research on the influence of surface structuring of diamond crystals containing color centers on their optical properties. Particular attention will be given to the potential for controlling single-photon emission. The entire body of work contributes to the rapidly evolving field of quantum technologies, particularly in the context of designing light sources for quantum communication applications.