Fachrichtung 7.2 (Experimentalphysik), Universität des Saarlandes , Campus E 2.6, 66123 Saarbrücken, Germany.
Nano Lett. 2014 Sep 10;14(9):5281-7. doi: 10.1021/nl502327b. Epub 2014 Aug 20.
Deterministic coupling of single solid-state emitters to nanocavities is the key for integrated quantum information devices. We here fabricate a photonic crystal cavity around a preselected single silicon-vacancy color center in diamond and demonstrate modification of the emitters internal population dynamics and radiative quantum efficiency. The controlled, room-temperature cavity coupling gives rise to a resonant Purcell enhancement of the zero-phonon transition by a factor of 19, coming along with a 2.5-fold reduction of the emitter's lifetime.
确定性耦合单固态发射器和纳米腔是集成量子信息设备的关键。我们在这里在金刚石中一个预先选定的单硅空位色心周围制造了一个光子晶体腔，并证明了发射体内部种群动力学和辐射量子效率的修饰。受控的室温腔耦合导致零声子跃迁的共振Purcell 增强因子为 19，同时发射体的寿命减少了 2.5 倍。
