Chip-integrated plasmonic cavity-enhanced single nitrogen-vacancy center emission
arXiv:1711.10183 · doi:10.1039/C7NR05675C
Abstract
High temporal stability and spin dynamics of individual nitrogen-vacancy (NV) centers in diamond crystals make them one of the most promising quantum emitters operating at room temperature. We demonstrate a chip-integrated cavity-coupled emission into propagating surface plasmon polariton (SPP) modes narrowing NV center's broad emission bandwidth with enhanced coupling efficiency. The cavity resonator consists of two distributed Bragg mirrors that are built at opposite sides of the coupled NV emitter and are integrated with a dielectric-loaded SPP waveguide (DLSPPW), using electron-beam lithography of hydrogen silsesquioxane resist deposited on silver-coated silicon substrates. A quality factor of ~ 70 for the cavity (full width at half maximum ~ 10 nm) with full tunability of the resonance wavelength is demonstrated. An up to 42-fold decay rate enhancement of the spontaneous emission at the cavity resonance is achieved, indicating high DLSPPW mode confinement.
References in corpus (9)
- Photonic quantum technologies
- Single-Photon Switching and Entanglement of Solid-State Qubits in an Integrated Nanophotonic System
- Unconditional quantum teleportation between distant solid-state qubits
- Chip-scale nanofabrication of single spins and spin arrays in diamond
- Controlled coupling of a single nitrogen-vacancy center to a silver nanowire
- Fundamental limitations in spontaneous emission rate of single-photon sources
- Nanofabrication of Plasmonic Circuits Containing Single Photon Sources
- Ultrabright Linearly Polarized Photon Generation from a Nitrogen Vacancy Center in a Nanocube Dimer Antenna
- Top-down fabrication of plasmonic nanostructures for deterministic coupling to single quantum emitters