Measurement of the optically induced spin polarisation of N-V centres in diamond

J. Harrison; M. J. Sellars; N. B. Manson

doi:10.1016/j.diamond.2005.12.027

Measurement of the optically induced spin polarisation of N-V centres in diamond

J. Harrison^*, M. J. Sellars, N. B. Manson

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

81 Citations (Scopus)

Abstract

The nitrogen-vacancy (N-V) colour centre in diamond has an electronic ground state with spin S = 1. The axial crystal field lifts the degeneracy of the spin triplet and the ground state consists of a spin singlet (S_z = 0) and a spin doublet (S_z = ± 1) separated by 2.88 GHz at zero field. Preferential population of the S_z = 0 state results when the centre is optically excited from the ground state. Using EPR spectroscopy at low temperature with laser illumination of the sample, we have quantified the degree of spin polarisation. The relevance of these measurements to proposed quantum computing applications of the N-V centre are discussed.

Original language	English
Pages (from-to)	586-588
Number of pages	3
Journal	Diamond and Related Materials
Volume	15
Issue number	4-8
DOIs	https://doi.org/10.1016/j.diamond.2005.12.027
Publication status	Published - Apr 2006

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10.1016/j.diamond.2005.12.027

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title = "Measurement of the optically induced spin polarisation of N-V centres in diamond",

abstract = "The nitrogen-vacancy (N-V) colour centre in diamond has an electronic ground state with spin S = 1. The axial crystal field lifts the degeneracy of the spin triplet and the ground state consists of a spin singlet (Sz = 0) and a spin doublet (Sz = ± 1) separated by 2.88 GHz at zero field. Preferential population of the Sz = 0 state results when the centre is optically excited from the ground state. Using EPR spectroscopy at low temperature with laser illumination of the sample, we have quantified the degree of spin polarisation. The relevance of these measurements to proposed quantum computing applications of the N-V centre are discussed.",

keywords = "Diamond crystal, Impurities, Optical properties",

author = "J. Harrison and Sellars, {M. J.} and Manson, {N. B.}",

year = "2006",

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doi = "10.1016/j.diamond.2005.12.027",

language = "English",

volume = "15",

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journal = "Diamond and Related Materials",

issn = "0925-9635",

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T1 - Measurement of the optically induced spin polarisation of N-V centres in diamond

AU - Harrison, J.

AU - Sellars, M. J.

AU - Manson, N. B.

PY - 2006/4

Y1 - 2006/4

N2 - The nitrogen-vacancy (N-V) colour centre in diamond has an electronic ground state with spin S = 1. The axial crystal field lifts the degeneracy of the spin triplet and the ground state consists of a spin singlet (Sz = 0) and a spin doublet (Sz = ± 1) separated by 2.88 GHz at zero field. Preferential population of the Sz = 0 state results when the centre is optically excited from the ground state. Using EPR spectroscopy at low temperature with laser illumination of the sample, we have quantified the degree of spin polarisation. The relevance of these measurements to proposed quantum computing applications of the N-V centre are discussed.

AB - The nitrogen-vacancy (N-V) colour centre in diamond has an electronic ground state with spin S = 1. The axial crystal field lifts the degeneracy of the spin triplet and the ground state consists of a spin singlet (Sz = 0) and a spin doublet (Sz = ± 1) separated by 2.88 GHz at zero field. Preferential population of the Sz = 0 state results when the centre is optically excited from the ground state. Using EPR spectroscopy at low temperature with laser illumination of the sample, we have quantified the degree of spin polarisation. The relevance of these measurements to proposed quantum computing applications of the N-V centre are discussed.

KW - Diamond crystal

KW - Impurities

KW - Optical properties

UR - http://www.scopus.com/inward/record.url?scp=33745287128&partnerID=8YFLogxK

U2 - 10.1016/j.diamond.2005.12.027

DO - 10.1016/j.diamond.2005.12.027

M3 - Article

SN - 0925-9635

VL - 15

SP - 586

EP - 588

JO - Diamond and Related Materials

JF - Diamond and Related Materials

IS - 4-8

ER -

Measurement of the optically induced spin polarisation of N-V centres in diamond

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