2014/11/03 by Jonathan C. Lee, David O. Bracher, Shanying Cui +12 · 75 citations
Materials Science · Physics and Astronomy · #Advanced Fiber Laser Technologies #Cavity quantum electrodynamics #Coupling (piping) #Diamond #Diamond and Carbon-based Materials Research #Fabrication #Mode volume #Nitrogen-vacancy center #Photonic Crystals and Applications #Photonic crystal #Q factor #Vacancy defect #cond-mat.mes-hall #cond-mat.mtrl-sci #physics.optics #quant-ph
paper · pdf · doi:10.1063/1.4904909
published in Applied Physics Letters 105(26) (American Institute of Physics) · 13 pages, 3 figures
arxiv created 2014/11/03 · openalex publication_date 2014/12/29 · arxiv updated 2015/06/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The negatively charged nitrogen vacancy center (NV) in diamond has generated significant interest as a platform for quantum information processing and sensing in the solid state. For most applications, high quality optical cavities are required to enhance the NV zero-phonon line (ZPL) emission. An outstanding challenge in maximizing the degree of NV-cavity coupling is the deterministic placement of NVs within the cavity. Here, we report photonic crystal nanobeam cavities coupled to NVs incorporated by a delta-doping technique that allows nanometer-scale vertical positioning of the emitters. We demonstrate cavities with Q up to ∼24 000 and mode volume V ∼ 0.47(λ/n)3 as well as resonant enhancement of the ZPL of an NV ensemble with Purcell factor of ∼20. Our fabrication technique provides a first step towards deterministic NV-cavity coupling using spatial control of the emitters.