Berlin 2014 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 65: Quantum information: Quantum computers and communication II

Q 65.3: Talk

Friday, March 21, 2014, 14:30–14:45, DO26 207

Isotopic sideband properties of SiV⁻ — •Andreas Dietrich, Lachlan Rogers, and Kay Jahnke — Institut für Quantenoptik - Universität Ulm, Ulm, Deutschland

Single photon emitters are essential for the growing fields of quantum communication and information processing. The negatively charged silicon-vacancy (SiV⁻) center in diamond is an promising candidate for such a single photon emitter. However for proper applications a deeper understanding of the physical structure and properties of this color center is needed. To get more inside into the center we probed the sideband of SiV⁻. Of special interest therein are the 64 meV and 128 meV phonon peaks in this sideband. We present a method measuring these peaks in bulk diamond at cryogenic temperature. Using the isotopic shift, we examine the influence of mass changes on the phonons. Thereby we get new information about the physical properties of this color center.