Berlin 2014 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 55: Precision measurements and metrology III
Q 55.5: Vortrag
Freitag, 21. März 2014, 11:45–12:00, DO24 1.101
Detection of a single charge using the NV center in diamond — Florian Dolde1, Marcus Doherty2, Julia Michl1, •Ingmar Jakobi1, Philipp Neumann1, Neil Manson2, and Jörg Wrachtrup1 — 13. Physikalisches Institut und SCoPE Research Center, Universität Stuttgart, Germany — 2Laser Physics Centre, Australian National University, Canberra, Australia
Advancement towards the characterization of nanoscale systems is a matter of particular interest in metrology. A fundamental step in this progress is the sensing of single particles.
Using electric field sensing techniques with nitrogen-vacancy (NV) centers in diamond we are able to detect a single charge under ambient conditions [1].
We use a pair of NV centers for our studies. One NV center can be employed as a sensitive electrometer to detect changes in the electric field. The second NV is used as a source, where a single electron can be displaced by optically switching between its neutral and negative charge states. For this purpose the NV centers need to have a close distance which we show using super-resolution techniques. In consequence, our measurements provide direct insight into the charge dynamics inside the material on a nanoscopic scale.
[1] F.Dolde, et al., arXiv:1310.4240 (2013)