Heidelberg 2015 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 62: Poster: Quantum Optics and Photonics III

Q 62.64: Poster

Donnerstag, 26. März 2015, 17:00–19:00, C/Foyer

Interfacing single molecules with nanofibers — •Hardy Schauffert, Sarah Skoff, and David Papencordt — Institut für angewandte Quantenoptik, TU Wien

Tapered optical fibers with a nanofiber waist have proven to be a highly sensitive tool for surface spectroscopy. A route towards extending the range of applications to the single-molecule level is to deposit dye-doped organic crystals of sub-micron size, in our case terrylene-doped p-Terphenyl, onto the nanofiber and to interface them with the evanescent field of the fiber-guided light. In previous studies different ways of deposition and preparation of the crystal have been developed, so that we are able to efficiently detect single molecules by fluorescence excitation spectroscopy . We will present the most recent results and show that the lifetime limited linewidth at cryogenic conditions and the strong Zero-Phonon-Line of Tr together with the nanofiber interface make this system a good candidate for a single photon source in the future.