Metal-Dielectric Antennas for Efficient Photon Collection from Diamond Color Centers

Abstract

A central challenge in quantum technologies based on atom-like defects is the efficient collection of the emitter's fluorescence. Optical antennas are appealing as they offer directional emission together with spontaneous emission rate enhancement across a broad emitter spectrum. In this work, we introduce and optimize metal-dielectric nanoantenna designs recessed into a diamond substrate and aligned with quantum emitters. We analyze trade-offs between external quantum efficiency, collection efficiency, Purcell factor, and overall collected photon rate. This analysis shows that an optimized metal-dielectric hybrid structure can increase the collected photon rate from a nitrogen vacancy center by over two orders of magnitude compared to a bare emitter. As a result, these metal-dielectric antennas should enable single-shot electron spin measurements of NV centers at room temperature.

11 pages, 7 figures

References in corpus (7)

• Unconditional quantum teleportation between distant solid-state qubits
• Strongly enhanced photon collection from diamond defect centres under micro-fabricated integrated solid immersion lenses
• All-optical initialization, readout, and coherent preparation of single silicon-vacancy spins in diamond
• Efficient readout of a single spin state in diamond via spin-to-charge conversion
• Three megahertz photon collection rate from an NV center with millisecond spin coherence
• Optical and microwave control of germanium-vacancy center spins in diamond
• Purcell-enhanced optical spin readout of Nitrogen-Vacancy centers in diamond

Cited by in corpus (9)

• Spin Readout Techniques of the Nitrogen-Vacancy Center in Diamond
• Hybrid Nanophotonics
• Inverse-designed photon extractors for optically addressable defect qubits
• Demonstration of vector magnetic field sensing by simultaneous control of nitrogen-vacancy centers in diamond using multi-frequency microwave pulses
• Hyperbolic Metamaterial Resonator-Antenna Scheme for Large, Broadband Emission Enhancement and Single Photon Collection
• A vertically-loaded diamond microdisk resonator spin-photon interface
• Field-based Design of a Resonant Dielectric Antenna for Coherent Spin-Photon Interfaces
• A quantum photonics model for non-classical light generation using integrated nanoplasmonic cavity-emitter systems
• A Fully-integrated Diamond Nitrogen-Vacancy Magnetometer with Nanotesla Sensitivity