Stuttgart 2012 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 54: Poster 3

Q 54.50: Poster

Donnerstag, 15. März 2012, 16:30–19:00, Poster.I+II

Nanofiber-based optical spectroscopy on emitter-doped crystals — •David Papencordt, Ariane Stiebeiner, Moritz Numrich, Ruth Garcia-Fernandez, and Arno Rauschenbeutel — VCQ, TU Wien – Atominstitut, Stadionallee 2, 1020 Wien, Austria

The use of optical nanofibers as an exceedingly sensitive tool for spectroscopy has proven to exhibit numerous advantages [1,2]. We present our results on nanofiber-based spectroscopic measurements on dye-doped organic crystals. We deposit the crystals on the nanofiber waist of a tapered optical fiber and excite them via the nanofiber, while the emitted fluorescence light is coupled into the guided mode of the fiber. Thus, crystal growth and guest-host interactions in the crystal can be studied spectroscopically. The measurements are performed under cryogenic conditions, allowing us to better resolve the spectral information. By measuring the statistical fine structure of the emitter-molecules doping the crystal, we take an important step towards nanofiber-based single molecule spectroscopy.

We gratefully acknowledge financial support by the Volkswagen Foundation, the ESF, and the EC (STREP “CHIMONO”).

[1] F. Warken et al., Opt. Express, 15, 11952 (2007)
A. Stiebeiner et al., Opt. Express, 17, 21704 (2009)