Detection of the ODMR signal of a nitrogen vacancy centre in nanodiamond in propagating surface plasmons

Al-Baiaty, Z, Cumming, B, Gan, X and Gu, M 2018, 'Detection of the ODMR signal of a nitrogen vacancy centre in nanodiamond in propagating surface plasmons', Journal of Optics, vol. 20, no. 3, pp. 1-9.


Document type: Journal Article
Collection: Journal Articles

Title Detection of the ODMR signal of a nitrogen vacancy centre in nanodiamond in propagating surface plasmons
Author(s) Al-Baiaty, Z
Cumming, B
Gan, X
Gu, M
Year 2018
Journal name Journal of Optics
Volume number 20
Issue number 3
Start page 1
End page 9
Total pages 9
Publisher Institute of Physics Publishing
Abstract We demonstrate that the optically detected magnetic resonance (ODMR) signal of a nitrogen vacancy (NV) centre can be coupled to propagating surface plasmons for the detection of the NV centre spin states, and of external magnetic fields. By coupling the spin dependent luminescence signal of a NV centre in a nanodiamond (ND) to a chemically synthesized silver nanowire, we demonstrate the readout of the ODMR signal as a reduction in the surface plasmon polariton intensity, with improved contrast in comparison to the emission from the NV centre. Furthermore, on the application of a permanent magnetic field from zero to 13 G, we demonstrate that the Zeeman splitting of the magnetic spin states of the nitrogen vacancy centre ground states can also be detected in the coupled surface plasmons. This is an important step in the development of a compact on-chip information processing system utilizing the nitrogen vacancy in nanodiamond as an on-chip source with efficient magnetometry sensing properties. © 2018 IOP Publishing Ltd.
Subject Optical Physics not elsewhere classified
Keyword(s) magnetic spin states
nanodiamonds
NV centre
ODMR
surface plasmon polariton
DOI - identifier 10.1088/2040-8986/aaa9e8
Copyright notice © 2018 IOP Publishing Ltd.
ISSN 2040-8978
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