Berlin 2014 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 16: Poster: Quantum information, micromechanical oscillators, matter wave optics, precision measurements and metrology

Q 16.56: Poster

Montag, 17. März 2014, 16:30–18:30, Spree-Palais

Cavity optomechanics with an optically levitated submicron particle — •Uroš Delić, Nikolai Kiesel, Florian Blaser, David Grass, Rainer Kaltenbaek, and Markus Aspelmeyer — Vienna Center for Quantum Science and Technology (VCQ), Faculty of Physics, University of Vienna, A-1090 Vienna, Austria

The center-of-mass motion of an optically levitated sub-micron dielectric particle, once decoupled from thermal environment, promises unprecedented high mechanical quality factors and a large force sensitivity [1]. Combined with an optical cavity this approach has been anticipated to allow room temperature quantum optomechanics [2]. We demonstrate experimentally the cavity-optomechanical control of a sub-wavelength sized particle and compare our results with a detailed theoretical description of the system. Current challenges and future extensions of the system towards high-Q operation are discussed.

[1] Li, T. et al. Nat Phys 7, 527 (2011), Gieseler, J. et al., PRL 109, 103603 (2012)

[2] Romero-Isart, O. et al. NJP 12, 33015 (2010), Chang D. et al. PNAS 107, 0912969107, (2009)