2009/04/30 by Paul E. Barclay, Kai‐Mei C. Fu, Kai-Mei Fu +2 · 1 citation
Engineering · Materials Science · Physics and Astronomy · #Diamond and Carbon-based Materials Research #Photonic Crystals and Applications #Photonic and Optical Devices #cond-mat.mes-hall #physics.optics #quant-ph
paper · pdf · doi:10.1364/oe.17.009588
published as Optics Express, Vol. 17, Issue 12, pp. 9588-9601 (2009)
arxiv created 2009/05/22 · openalex publication_date 2009/05/22 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A design for an ultra-high Q photonic crystal nanocavity engineered to interact with nitrogen-vacancy (NV) centers located near the surface of a single crystal diamond sample is presented. The structure is based upon a nanowire photonic crystal geometry, and consists of a patterned high refractive index thin film, such as gallium phosphide (GaP), supported by a diamond substrate. The nanocavity supports a mode with quality factor Q > 1.5 x 10(6) and mode volume V < 0.52(lambda/nGaP)(3), and promises to allow Purcell enhanced collection of spontaneous emission from an NV located more than 50 nm below the diamond surface. The nanowire photonic crystal waveguide can be used to efficiently couple light into and out of the cavity, or as an efficient broadband collector of NV phonon sideband emission. The proposed structures can be fabricated using existing materials and processing techniques.