Journal article

Nickel related optical centres in diamond created by ion implantation

JO Orwa, I Aharonovich, F Jelezko, G Balasubramanian, P Balog, M Markham, DJ Twitchen, AD Greentree, S Prawer

JOURNAL OF APPLIED PHYSICS | AMER INST PHYSICS | Published : 2010

Abstract

Ni-related optical centres in diamond are promising as alternatives to the nitrogen vacancy (NV) centre for quantum applications and biomarking. In order to achieve the reliability and reproducibility required, a method for producing the Ni-related centres in a controllable manner needs to be established. In this study, we have attempted this control by implanting high purity CVD diamond samples with Ni and N followed by thermal annealing. Samples implanted with Ni show a new Ni-related PL peak centered at 711 nm and a well known doublet at 883/885 nm along with weak NV luminescence. The optical properties of the two Ni-related defects are investigated. In particular, an excited state lifeti..

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