Hybrid quantum technology

The controlled interfacing of individually well-isolated atoms is one of the outstanding challenges for bottom-up assemblies of complex quantum systems. In our research, we build on quantum emitters in a nanometer-sized host matrix and utilize AFM-based nano-manipulation to establish controlled evanescent coupling. In this approach classical photonics and plasmonic devices can be post-processed with quantum functionality. Our work is targeted to develop complex quantum systems in a bottom-up approach.

Selected references:

K. G. Fehler, et al., „Purcell-enhanced emission from individual SiV center in nanodiamonds coupled to a Si3N4-based, photonic crystal cavity“. Nanophotonics 20200257 (2020)

H. Siampour et al., „Ultrabright single-photon emission from germanium-vacancy zero-phonon lines: deterministic emitter-waveguide interfacing at plasmonic hot spots“. Nanophotonics 9, 4, 953-962 (2020)

K. G. Fehler, et al., „Efficient Coupling of an Ensemble of Nitrogen Vacancy (NV-) to the Mode of a High-Q, Si3N4 Photonic Crystal Cavity“. ACS Nano 13, 6, 6891-6898 (2019)