2018/11/30 by Alexander Landowski, Jonas Gutsche, Landowski, Alexander +9
Materials Science · Physics and Astronomy · #Advanced Fiber Laser Technologies #Diamond and Carbon-based Materials Research #FOS: Physical sciences #Force Microscopy Techniques and Applications #Optics (physics.optics) #Quantum Physics (quant-ph)
paper · pdf · doi:10.48550/arxiv.1811.12868
openalex publication_date 2018/11/30 · openalex created_date 2022/08/01 · openalex updated_date 2026/07/28
We report on the coherent internal-state control of single crystalline\nnanodiamonds, containing on average 1200 nitrogen-vacancy (NV) centers,\nembedded in three-dimensional direct-laser-written waveguides. We excite the NV\ncenters by light propagating through the waveguide, and we show that emitted\nfluorescence can be efficiently coupled to the waveguide modes. We find an\naverage coupling efficiency of 21.6% into all guided modes. Moreover, we\ninvestigate optically-detected magnetic-resonance spectra as well as Rabi\noscillations recorded through the waveguide-coupled signal. Our work shows that\nthe system is well suited for magnetometry and remote read-out of spin\ncoherence in a freely configurable waveguide network, overcoming the need for\ndirect optical access of NV centers in nanodiamonds. These waveguide-integrated\nsensors might open up new applications, like determining magnetic field\ndistributions inside opaque or scattering media, or photosensitive samples,\nlike biological tissue.\n