Heidelberg 2015 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 56: Nano-Optics III

Q 56.1: Vortrag

Donnerstag, 26. März 2015, 14:30–14:45, C/HSO

Interactions of single molecules with the guided modes of an optical nanofiber — •Sarah Margaretha Skoff, David Papencordt, Hardy Schauffert, and Arno Rauschenbeutel — University of Technology Vienna, Institute for Atomic and Subatomic Physics, Stadionallee 2, 1020 Vienna

Single molecules interfaced with optical nanofibers provide a very versatile system for quantum optics experiments. Single molecules in solids have been shown to be very photostable, have narrow lifetime limited transitions at cryogenic temperatures and nearly unity quantum yield. Optical nanofibers are tapered commercial optical fibers with a waist smaller than the wavelength of light they are guiding. They provide a strong transverse confinement of the light field while an appreciable amount of the intensity is guided outside the fiber surface as an evanescent wave. This ensures strong interactions between the light field and even a single molecule. We will show how single terrylene molecules in p-terphenyl nanocrystals are efficiently interfaced with optical nanofibers. Spectroscopy of single molecules will be presented and the advantageous properties of this system will be explained in detail.