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Berlin 2014 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 55: Precision measurements and metrology III

Q 55.7: Talk

Friday, March 21, 2014, 12:15–12:30, DO24 1.101

Angle Resolved Electric Field Sensing with Single Spin Defects in Solids — •Julia Michl1, Marcus Doherty2, Ingmar Jakobi1, Florian Dolde1, Philipp Neumann1, Tokuyuki Teraji3, Junichi Isoya4, and Jörg Wrachtrup113. Physikalisches Institut, Universität Stuttgart, Germany — 2Australian National University, Canberra, Australia — 3National Institute for Materials Science, Tsukuba, Japan — 4Research Center for Knowledge Communities, University of Tsukuba, Japan

In recent years, the nitrogen-vacancy (NV) center in diamond has emerged as a promising candidate not only for quantum computing, but also for sensing applications. Electric field sensing via NV, contrary to magnetic field sensing, is a rather unexplored topic of research. Here, we conduct new measurements using transverse magnetic and electric fields, which allows further verification and refinement of the Stark-shift Hamiltonian.

With such measurements, the strength of electric fields in transverse direction can be measured. Additionally, conclusions about its angular direction can be drawn, as the C3v symmetry of the NV center affects the Stark-shift under certain angles. Hence, these measurements allow to assert the orientation along the symmetry axis of the NV.

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