Hannover 2013 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 43: Poster II
Q 43.64: Poster
Mittwoch, 20. März 2013, 16:00–18:30, Empore Lichthof
Carbon Nanotube spectroscopy in optical microcavities — •Thomas Hümmer1,2, Hanno Kaupp1,2, Matthias S. Hofmann1, Jonathan Noe1, Alexander Högele1, Theodor W. Hänsch1,2, and David Hunger1,2 — 1Ludwig-Maximilians-Universität München, Deutschland — 2Max-Planck Institut für Quantenoptik, Garching, Deutschland
We use fiber-based Fabry-Perot optical microcavities[1] with mode volumes down to a few tens of wavelengths cubed and high quality factors up to 107 to study single-walled carbon nanotubes (SWCNTs).
Very recent progress in the growth of freestanding narrow-diameter SWCNTs has demonstrated that this system can show exceptional fluorescence properties, including a strong optical dipole transition, single photon emission characteristics, and close to Fourier limited linewidth[2]. Placing nanotubes inside an optical microcavity promises ultimative sensitivity for absorption spectroscopy and strong Purcell enhancement of fluorescence emission. Harnessing the full tunability and open access of fiber-based microcavities allows us to address a variety of CNTs at different locations and wavelengths with a single cavity. We show first experimental results on cavity enhanced spectroscopy of individual SWCNTs and discuss the potential for cavity QED with this system.
Hunger, Reichel et al., NJP 12, 065038 (2010)
Hofmann, Högele et al., arXiv: 1209.3429 (2012)