Helium ion microscope generated nitrogen-vacancy centres in type Ib diamond

D. McCloskey, D. Fox, N. O'Hara, V. Usov, D. Scanlan, N. McEvoy, G. S. Duesberg, G. L. W. Cross, H. Z. Zhang, J. F. Donegan
2014 Applied Physics Letters  
Native and induced triplet nitrogen-vacancy centers in nano-and micro-diamonds: Half-field electron paramagnetic resonance fingerprint Appl. Phys. Lett. 104, 063107 (2014); 10.1063/1.4865205 Diamond nitrogen-vacancy centers created by scanning focused helium ion beam and annealing We report on position and density control of nitrogen-vacancy (NV) centres created in type Ib diamond using localised exposure from a helium ion microscope and subsequent annealing. Spatial control to <380 nm has been
more » ... to <380 nm has been achieved. We show that the fluorescence lifetime of the created centres decreases with increasing ion dose. Furthermore, we show that for doses >1 Â 10 17 ion/cm 2 , significant damage of the diamond lattice occurs resulting in fluorescence quenching and amorphization. This places an upper limit on the density of NV centres that can be created using this method. V C 2014 AIP Publishing LLC. [http://dx.
doi:10.1063/1.4862331 fatcat:dsgpeypulnfszdw2cbyqx5thme