Mainz 2017 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 31: Poster: Quantum Optics and Photonics I
Q 31.73: Poster
Dienstag, 7. März 2017, 17:00–19:00, P OG1+2
Double-resonant Cavity-enhanced Raman Spectroscopy of Carbon Nanotubes — •Thomas Hümmer1,2, Theodor W. Hänsch1,2, and David Hunger3,1,2 — 1Ludwig-Maximilians-Universität München, Deutschland — 2Max-Planck Institut für Quantenoptik, Garching, Deutschland — 3Karlsruher Institut für Technologie, Karlsruhe, Deutschland
We use a tunable high-finesse optical microcavity[1] to demonstrate Purcell enhancement of Raman scattering in combination with high-resolution scanning-cavity imaging[2]. We detect cavity-enhanced Raman spectra[3] of individual single-walled carbon nanotubes and co-localize measurements with cavity-enhanced absorption microscopy. By using a double resonance of the cavity, where both the excitation light and the Raman-scattered light is simultaneously resonant with a high finesse cavity mode, we expect signal enhancements by four orders of magnitude. We report on the current status of the experiment and explain it with the help of free candy.
Hunger et al., NJP 12, 065038 (2010)
[2] Mader et al., Nat Commun 6, 7249 (2015)
[3] Hümmer et al Nat Commun 7, 12155 (2016)