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Laser writing of coherent colour centres in diamond

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Chen, Y. C., Salter, P. S., Knauer, S., Weng, L., Frangeskou, Angelo, Stephen, Colin J., Ishmael, Shazeaa N. , Dolan, P. R., Johnson, S., Green, Ben, Morley, Gavin, Newton, Mark E., Rarity, J. G., Booth, M. J. and Smith, J. M. (2017) Laser writing of coherent colour centres in diamond. Nature Photonics, 11 . pp. 77-80. doi:10.1038/nphoton.2016.234 ISSN 1749-4885.

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Official URL: https://doi.org/10.1038/nphoton.2016.234

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Abstract

Optically active point defects in crystals have gained widespread attention as photonic systems that can find use in quantum information technologies [1,2]. However challenges remain in the placing of individual defects at desired locations, an essential element of device fabrication. Here we report the controlled generation of single nitrogen-vacancy (NV) centres in diamond using laser writing [3]. The use of aberration correction in the writing optics allows precise positioning of vacancies within the diamond crystal, and subsequent annealing produces single NV centres with up to 45% success probability, within about 200 nm of the desired position. Selected NV centres fabricated by this method display stable, coherent optical transitions at cryogenic temperatures, a pre-requisite for the creation of distributed quantum networks of solid-state qubits. The results illustrate the potential of laser writing as a new tool for defect engineering in quantum technologies.

Item Type: Journal Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
Library of Congress Subject Headings (LCSH): Photonics, Diamonds -- Industrial applications, Diamond crystals, Lasers
Journal or Publication Title: Nature Photonics
Publisher: Nature Publishing Group
ISSN: 1749-4885
Official Date: 2017
Dates:
DateEvent
2017Published
5 December 2016Available
26 October 2016Accepted
Volume: 11
Page Range: pp. 77-80
DOI: 10.1038/nphoton.2016.234
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 29 March 2018
Date of first compliant Open Access: 29 March 2018
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
UNSPECIFIEDDe Beers Consolidated Mineshttp://viaf.org/viaf/155657934
618078European Commissionhttp://dx.doi.org/10.13039/501100000780
EP/M013243/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
UNSPECIFIEDLeverhulme Trusthttp://dx.doi.org/10.13039/501100000275
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