Dresden 2017 – wissenschaftliches Programm
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BP: Fachverband Biologische Physik
BP 8: Posters - Bioimaging and Spectroscopy
BP 8.8: Poster
Montag, 20. März 2017, 17:30–19:30, P3
Robust control of spins in nanodiamonds in complex environments — •Philipp Konzelmann1, Torsten Rendler1, Andrea Zappe1, Sebastian Zaiser1, Matthias Widmann1, Sang Yun Lee2, Philipp Neumann1, Jörg Wrachtrup1, and Florian Dolde3 — 13rd Institute of Physics, IQST and SCOPE, Stuttgart — 2Korea Institute of Science and Technology — 3DNT Inc.
Nanodiamonds (ND) had been shown to be of excellent biocompatibility and additionally can host color centers. One of the most prominent representatives is the so-called nitrogen vacancy center (NV) that features, due to its unique spin system, the intrinsic capacity to sense for example magnetic or electric fields, pressure and temperature [1]. Furthermore, intense progress in functionalization of ND surface in past years promises a manifold of different applications in life science [2]. However, keeping control of the NV spin sublevel, especially in complex environments, remains challenging. If a ND changes for example its orientation, variations in excitation strength and shifts of the NV spin transitions are expectable. To overcome this obstacle several techniques had been developed exhibiting a certain robustness against such fluctuations [3,4,5]. To this end, we utilize optimum control theory in combination with so-called cooperative pulse schemes [5]. In our work, we present a systematical study exploring the efficiency of such pulses for NVs in NDs. [1] R. Schirhagl et al., ARPC 65: 83-105 (2014) [2] D.G. Lim et al., Int. J. Pharm. 514: 41-51 (2016) [3] M. Garwood et al., JMR. 153: 155-177 (2001) [4] A. M. Souza et al., PRL 106: 240501 (2011) [5] M. Braun et al.., NJP 16 (2014)