München 2004 – wissenschaftliches Programm
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Q: Quantenoptik und Photonik
Q 15: Quanteneffekte I
Q 15.5: Vortrag
Dienstag, 23. März 2004, 12:00–12:15, HS 218
A solid state single photon source with Si-V center in diamond — •Chunlang Wang1, Christian Kurtsiefer1, Harald Weinfurter1,2 und Jan Meijer3 — 1Sektion Physik, Ludwig-Maximilians-Universität München — 2Max-Planck-Institut für Quantenoptik, Garching — 3Experimentalphysik III Ruhr-Universität-Bochum
We investigate the possibility to use single silicon-vacancy (Si-V) color centers in diamond as a single photon source. The Si-V center is a point defect in diamond, which consists of a silicon atom and a vacancy. It promises to generate single photons within a narrow spectral range at room temperature efficiently. Such a light source is especially desired for quantum cryptography.
Si-V centers were successfully produced in IIa diamond by ion implantation. Single Si-V centers can be detected in samples with suitable ion dose. The nonclassic property of the light from single Si-V centers is investigated by a Hanbury-Brown-Twiss setup.