Mainz 2017 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 48: Optomechanics I
Q 48.3: Vortrag
Donnerstag, 9. März 2017, 15:00–15:15, P 4
Rotational optomechanics with levitated nanorods — •Stefan Kuhn1, Benjamin A. Stickler2, Alon Kosloff3, Fernando Patolsky3, Klaus Hornberger2, Markus Arndt1, and James Millen1 — 1University of Vienna, Faculty of Physics, VCQ, Boltzmanngasse 5, 1090 Vienna, Austria — 2University of Duisburg-Essen, Lotharstraße 1, 47048 Duisburg, Germany — 3School of Chemistry, Tel-Aviv University, Ramat-Aviv 69978, Israel
Optical control over nano-mechanical structures has become invaluable for force sensing applications and tests of fundamental quantum physics. To achieve the optimal performance of such devices, their coupling to the environment needs to be minimized. This can for instance be achieved by levitating nanoparticles in external fields which has led to a growing interest in the field of levitated optomechanics. Here we extend this work to the rotational motion of optically trapped silicon nanorods[1]. We track and manipulate both their linear and rotational motion in the field of two counter-propagating, focussed laser beams via the light polarization. In this way we gain full control over the ro-translational dynamics of the rod. We will discuss the prospects of our levitated systems for realising rotational optomechanics[2,3], single particle thermodynamics and as a novel source for high-mass matter-wave interferometry experiments.
[1] S. Kuhn et al., arXiv:1608.07315 (2016)
[2] S. Kuhn et al., Nano Lett., 15(8), 5604-5608 (2015)
[3] B. A. Stickler et al., Phys. Rev. A, 94, 033818 (2016)