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Q: Fachverband Quantenoptik und Photonik

Q 54: Nano-Optics (Single Quantum Emitters and Plasmonics)

Q 54.1: Vortrag

Donnerstag, 8. März 2018, 10:30–10:45, K 0.023

An optical nanofiber-based interface for single molecules — •Hardy Schauffert, Sarah Skoff, David Papencordt, and Arno Rauschenbeutel — Technische Universität Wien

Integrated optical interfaces for quantum emitters are a prerequisite for implementing quantum networks. In this context, tapered optical fibers with a nanofiber waist recently received significant attention as an efficient means of light-matter interaction. Due to the sub-wavelength diameter of the waist, a large fraction of the light propagates outside of the fiber as an evanescent wave. An emitter brought close to the surface of the nanofiber strongly interacts with the guided light field. Here, we couple single organic dye molecules to the guided modes of an optical nanofiber. The molecules are embedded in a nano-crystal host that provides photostability and due to the resulting inhomogeneous broadening, a means to spectrally address single molecules. The molecules are optically excited and their fluorescence is detected solely via the nanofiber interface without the requirement of additional optical access. I will discuss our results, where we observed the emission of bandwidth limited single photons by individually adressable molecules into the nanofiber. Furthermore we show our first results of the effect of single molecules on the fiber guided light. These results show, that our approach is a possible candidate for a versatile, fiber integrated constituent for quantum hybrid systems.