Erlangen 2018 – wissenschaftliches Programm
Q 40.17: Poster
Dienstag, 6. März 2018, 16:15–18:15, Zelt West
Coupling of quantum emitters in Si3N4 photonic crystal nanobeam cavities — •Jan Olthaus1, Doris E. Reiter1, Philip Schrinner2, and Carsten Schuck2 — 1Institut für Festkörpertheorie, Universität Münster, 48149 Münster, Germany — 2Physikalisches Institut, Universität Münster, 48149 Münster, Germany
The efficient integration of single-quantum emitters with photonic circuits is a major challenge for the development of quantum technologies. A scalable implementation of single-photon emitters on a chip requires a low-loss interface and strong light-matter interactions. Here, we present results for geometry optimisations based on 3D-FDTD simulations of photonic crystal nanobeam cavities embedded with a Si3N4 waveguide. Our goal is to optimise the structure in terms of a low, wavelength-scale mode volume in combination with a high Q-factor of the localised cavity mode. Based on this geometry we analyze the coupling strength between the single-photon emitter and the dielectric waveguide dependent on the position and polarization of the source. Our results pave the way for an efficient integration of single-photon sources into photonic circuits.