Hannover 2020 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 54: Posters: Quantum Optics and Photonics IV
Q 54.29: Poster
Thursday, March 12, 2020, 16:30–18:30, Empore Lichthof
Simulations of Dipole Emitters Coupled to Inverted Cone Nanopillar Diamond Structures — •Cem Güney Torun1 and Tim Schröder1,2 — 1Department of Physics, Humboldt-Universität zu Berlin, Germany — 2Ferdinand-Braun-Institut, Berlin, Germany
Single, optically active quantum systems, such as single photon sources and quantum memories are building blocks for quantum technologies. In order to achieve sensitive quantum sensors, or quantum communication devices with high communication rates, we require efficient optical coupling to such quantum systems. In this work, we focus on a device that is simple in design and easy to produce but still enables photon extraction efficiencies as high as in more complex designs. In particular, we optimize numerically coupling efficiencies of a dipole emitter inside an inverted diamond nanocone to a single mode optical fibre. From our simulations we determine dipole to fibre mode coupling efficiencies of up to 86% extracted from overlap integrals between far-field intensity distribution and Gaussian fibre mode.