Nanofabrication of Plasmonic Circuits Containing Single Photon Sources

Abstract

Nanofabrication of photonic components based on dielectric-loaded surface plasmon-polariton waveguides (DLSPPWs) excited by single nitrogen vacancy (NV) centers in nanodiamonds is demonstrated. DLSPPW circuits are built around NV containing nanodiamonds, which are certified to be single-photon emitters, using electron-beam lithography of hydrogen silsesquioxane (HSQ) resist on silver-coated silicon substrates. A propagation length of ~20 μm for the NV single-photon emission is measured with DLSPPWs. A 5-fold enhancement in the total decay rate and up to 63% coupling efficiency to the DLSPPW mode is achieved, indicating significant mode confinement. Finally, we demonstrate routing of single plasmons with DLSPPW-based directional cou-plers, revealing the potential of our approach for on-chip realization of quantum-optical networks.

References in corpus (3)

• Controlled coupling of a single nitrogen-vacancy center to a silver nanowire
• Gap and channelled plasmons in tapered grooves: a review
• Top-down fabrication of plasmonic nanostructures for deterministic coupling to single quantum emitters

Cited by in corpus (4)

• Integrated Single Photon Emitters
• Chip-integrated plasmonic cavity-enhanced single nitrogen-vacancy center emission
• Deterministic coupling of a quantum emitter to surface plasmon polaritons, Purcell enhanced generation of indistinguishable single photons and quantum information processing
• High fidelity TiN processing modes for multi-gate Ge-based quantum devices