(American Chemical Society (ACS), 2012) Hausmann, Birgit Judith Maria; Shields, Brendan John; Quan, Qimin; Maletinsky, Patrick; McCutcheon, Murray; Choy, Jennifer Tze-Heng; Babinec, Tom M.; Kubanek, Alexander; Yacoby, Amir; Lukin, Mikhail; Loncar, Marko
We demonstrate an integrated nanophotonic network in diamond, consisting of a ring resonator coupled to an optical waveguide with grating in- and outcouplers. Using a nitrogen-vacancy color center embedded inside the ring resonator as a source of photons, single photon generation and routing at room temperature is observed. Furthermore, we observe a large overall photon extraction efficiency (10%) and high quality factors of ring resonators (3200 for waveguide-coupled system and 12 600 for a bare ring).
(American Chemical Society (ACS), 2013) Hausmann, Birgit Judith Maria; Shields, Brendan John; Quan, Qimin; Chu, Yiwen; de Leon, Nathalie Pulmones; Evans, Ruffin; Burek, Michael; Zibrov, Alexander; Markham, M.; Twitchen, D. J.; Park, Hongkun; Lukin, Mikhail; Loncar, Marko
The realization of efficient optical interfaces for solid-state atom-like systems is an important problem in quantum science with potential applications in quantum communications and quantum information processing. We describe and demonstrate a technique for coupling single nitrogen vacancy (NV) centers to suspended diamond photonic crystal cavities with quality factors up to 6000. Specifically, we present an enhancement of the NV center’s zero-phonon line fluorescence by a factor of 7 in low-temperature measurements.
