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.
@article{arxiv.1403.6063,
title = {Photonic nano-structures on (111) oriented diamond},
author = {Elke Neu and Patrick Appel and Marc Ganzhorn and Javier Miguel-Sanchez and Margarita Lesik and Vianney Mille and Vincent Jacques and Alexandre Tallaire and Jocelyn Achard and Patrick Maletinsky},
journal= {arXiv preprint arXiv:1403.6063},
year = {2014}
}
Comments
4 pages original manuscript, 3 pages supplementary material