2014/03/24 by Elke Neu, Patrick Appel, Marc Ganzhorn +8 · 2 citations
Materials Science · Physics and Astronomy · #Diamond and Carbon-based Materials Research #Quantum optics and atomic interactions #Topological Materials and Phenomena #cond-mat.mes-hall #cond-mat.mtrl-sci #quant-ph
paper · pdf · doi:10.1063/1.4871580
published as Applied Physics Letters 104, 153108 (2014) · 4 pages original manuscript, 3 pages supplementary material
arxiv created 2014/03/24 · openalex publication_date 2014/04/14 · arxiv updated 2014/07/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We demonstrate the fabrication of single-crystalline diamond nanopillars on a (111)-oriented chemical vapor deposited diamond substrate. This crystal orientation offers optimal coupling of nitrogen-vacancy (NV) center emission to the nanopillar mode and is thus advantageous over previous approaches. We characterize single native NV centers in these nanopillars and find one of the highest reported saturated fluorescence count rates in single crystalline diamond in excess of 106 counts per second. We show that our nano-fabrication procedure conserves the preferential alignment as well as the spin coherence of the NVs in our structures. Our results will enable a new generation of highly sensitive probes for NV magnetometry and pave the way toward photonic crystals with optimal orientation of the NV center's emission dipole.