Rostock 2019 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 62: Optomechanics
Q 62.2: Vortrag
Freitag, 15. März 2019, 11:00–11:15, S SR 111 Maschb.
Levitation of nanodiamonds containing single emitters in a Paul trap — •Andreas W. Schell1,2, Gerard P. Conangla2, Raul Rica2, and Romain Quidant2 — 1Quantum Optical Technology Group, CEITEC, Brno, Czech Republic — 2ICFO, Barcelona, Spain
Here, we present a method for levitating nanodiamond crystals containing single nitrogen vacancy centers for use in levitation optomechanics. Levitation optomechanics exploits the unique mechanical properties of trapped micro and nano-objects in vacuum and has the potential to push forward the limits of experimental physics leading to a better understanding of quantum decoherence and novel ultra-sensitive sensing schemes. While optical levitation of nanodiamonds in vacuum results in thermal damage, it has been shown that a single charged submicron particle can be stabilized in a quadrupole ion trap allowing for the observation of NV fluorescence [1]. Here, we will demonstrate trapping in vacuum and center-of-mass feedback cooling of a nanodiamond holding a single NV center in a three-dimensional Paul trap [2]. The achieved motion control enables us to optically interrogate and characterize the single NV response. The platform developed here consisting of a three-dimensional Paul trap with high numerical aperture optical access and the possibility to perform feedback cooling in vacuum.
[1] Kuhlicke, A., Schell, A. W., Zoll, J., & Benson, O. Applied Physics Letters, 105(7), 073101 (2014). [2] Planes, G., Schell A., W., Rica, R., Quidant, R., Nano Letters 18, 3956-3961