Superradiant diamond color center arrays coupled to concave plasmonic nanoresonators
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2019-10-14 |
| Journal | Optics Express |
| Authors | DĂĄvid Vass, AndrĂĄs Szenes, BalĂĄzs BĂĄnhelyi, Tibor Csendes, GĂĄbor SzabĂł |
| Institutions | University of Szeged |
| Citations | 7 |
Abstract
Section titled âAbstractâSuperradiantly enhanced emission of SiV diamond color centers was achieved via numerically optimized concave plasmonic nanoresonators. Advantages of different numbers of SiV color centers, diamond-silver (bare) and diamond-silver-diamond (coated) core-shell nanoresonator types, spherical and ellipsoidal geometries were compared. Indistinguishable superradiance is reached via four color centers, which is accompanied by line-width narrowing except in a coated ellipsoidal nanoresonator that outperforms its bare counterpart in superradiance. Seeding of both spherical and bare ellipsoidal nano-resonators with six color centers results in larger fluorescence enhancement and better overridden superradiance thresholds simultaneously. Both phenomena are the best optimized in a six color centers seeded ellipsoidal bare nanoresonator according to the pronounced bad-cavity characteristics.