2013/08/02 by Jennifer T. Choy, Irfan Bulu, İrfan Bulu +4 · 87 citations
Engineering · Materials Science · Physics and Astronomy · #Advanced Fiber Laser Technologies #Diamond #Diamond and Carbon-based Materials Research #Laser #Materials science #Nanotechnology #Nonlinear Optical Materials Studies #Optics #Optoelectronics #Physics #Plasmon #Spontaneous emission #physics.optics #quant-ph
paper · pdf · doi:10.1063/1.4817397
published in Applied Physics Letters 103(16) (American Institute of Physics)
arxiv created 2013/08/02 · openalex publication_date 2013/10/14 · arxiv updated 2015/06/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We demonstrate an approach, based on plasmonic apertures and gratings, to enhance the radiative decay rate of single nitrogen-vacancy (NV) centers in diamond while simultaneously improving their collection efficiency. Our structures are based on metallic resonators formed by surrounding sub-wavelength diamond nanoposts with a silver film, which can enhance the spontaneous emission rate of an embedded NV center. However, the collection efficiency of emitted photons remains low due to losses to surface plasmons and reflections at the diamond-air interface. In this work, we mitigate photon losses into these channels by incorporating grating structures into the plasmonic cavity system.