Optical detection of magnetic resonance in nitrogen vacancy centre ensembles in bulk diamond using an off-resonant probe laser beam

C. D. Macrae, E. Fraczek, M. E. Newton, H. Dhillon, A. Bennett, M. Markham, P. Diggle, B. G. Breeze, M. Dale, V. Savitski, P. F. Griffin, A. Kemp, E. Riis, G. McConnell

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Abstract

Nitrogen vacancy (NV) centres are a type of defect in diamond that exhibit a number of interesting properties. NV centres can be optically excited around 450-650 nm and emit fluorescence at around 550-800 nm [1]. The optical excitation also spin polarises the negatively charged NV centres, permitting optical detection of magnetic resonance [2]. This allows nanotesla scale sensitive magnetometry to be performed with nanometre scale spatial resolution [3]. Generally, fluorescence based detection is used in magnetometric applications where photons are emitted in all directions thus making collection difficult. By utilising stimulated emission, the photons could be predominantly channelled into a single mode, thus greatly simplifying collection. This is especially important as the magnetometric sensitivity is proportional to the number of collected photons [3].
Original languageEnglish
Title of host publicationThe European Conference on Lasers and Electro-Optics 2017
Place of PublicationMunich, Germany
PublisherThe Optical Society
Number of pages1
ISBN (Print)978-1-5090-6736-7
Publication statusPublished - 25 Jun 2017
EventThe European Conference on Lasers and Electro-Optics, CLEO_Europe 2017 - Munich, Germany
Duration: 25 Jun 201729 Jun 2017

Conference

ConferenceThe European Conference on Lasers and Electro-Optics, CLEO_Europe 2017
CountryGermany
CityMunich
Period25/06/1729/06/17

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Keywords

  • off resonant probe laser beam
  • magnetic resonance
  • optical detection

Cite this

Macrae, C. D., Fraczek, E., Newton, M. E., Dhillon, H., Bennett, A., Markham, M., ... McConnell, G. (2017). Optical detection of magnetic resonance in nitrogen vacancy centre ensembles in bulk diamond using an off-resonant probe laser beam. In The European Conference on Lasers and Electro-Optics 2017 [CH_11_2] Munich, Germany: The Optical Society.