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Q: Fachverband Quantenoptik und Photonik

Q 54: Poster 3

Q 54.24: Poster

Donnerstag, 15. März 2012, 16:30–19:00, Poster.I+II

Diffraction Unlimited Imaging of NV Centers in Diamond — •Pascal Heller, Andreas Häußler, and Fedor Jelezko — Institut für Quantenoptik, Universität Ulm, Albert-Einstein-Allee 11, 89081 Ulm - Germany

Near pairs or chains of multiple Nitrogen-Vacancy (NV) color centers in diamond are interesting candidates for a multi qubit system in solid state. The coupling of such NVs is due to dipole dipole interaction and therefore is limited by these short-range forces to about 50 nm. Resolving and measuring the properties of such near NV, an imaging method far more powerful than conventional far-field-microscopy is needed. We use the nonlinear effect of Ground State Depletion (GSD) to overcome the diffraction limit by more than one order of magnitude. So far a spatial resolution below 20 nm perpendicular to the optical axis has been achieved. Further improvement will lead to superresolved 3D images, enabling high precision qubit engineering.