Magnetic field-induced enhancement of the nitrogen-vacancy fluorescence quantum yield

M. Capelli; P. Reineck; D. W.M. Lau; A. Orth; J. Jeske; M. W. Doherty; T. Ohshima; A. D. Greentree; B. C. Gibson

doi:10.1039/c7nr02093g

Magnetic field-induced enhancement of the nitrogen-vacancy fluorescence quantum yield

M. Capelli^*, P. Reineck, D. W.M. Lau, A. Orth, J. Jeske, M. W. Doherty, T. Ohshima, A. D. Greentree, B. C. Gibson

^*Corresponding author for this work

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

15 Citations (Scopus)

Abstract

The nitrogen-vacancy (NV) centre in diamond is a unique optical defect that is used in many applications today and methods to enhance its fluorescence brightness are highly sought after. We observed experimentally an enhancement of the NV quantum yield by up to 7% in bulk diamond caused by an external magnetic field relative to the field-free case. This observation is rationalised phenomenologically in terms of a magnetic field dependence of the NV excited state triplet-to-singlet transition rate. The theoretical model is in good qualitative agreement with the experimental results at low excitation intensities. Our results significantly contribute to our fundamental understanding of the photophysical properties of the NV defect in diamond.

Original language	English
Pages (from-to)	9299-9304
Number of pages	6
Journal	Nanoscale
Volume	9
Issue number	27
DOIs	https://doi.org/10.1039/c7nr02093g
Publication status	Published - 21 Jul 2017

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title = "Magnetic field-induced enhancement of the nitrogen-vacancy fluorescence quantum yield",

abstract = "The nitrogen-vacancy (NV) centre in diamond is a unique optical defect that is used in many applications today and methods to enhance its fluorescence brightness are highly sought after. We observed experimentally an enhancement of the NV quantum yield by up to 7% in bulk diamond caused by an external magnetic field relative to the field-free case. This observation is rationalised phenomenologically in terms of a magnetic field dependence of the NV excited state triplet-to-singlet transition rate. The theoretical model is in good qualitative agreement with the experimental results at low excitation intensities. Our results significantly contribute to our fundamental understanding of the photophysical properties of the NV defect in diamond.",

author = "M. Capelli and P. Reineck and Lau, {D. W.M.} and A. Orth and J. Jeske and Doherty, {M. W.} and T. Ohshima and Greentree, {A. D.} and Gibson, {B. C.}",

note = "Publisher Copyright: {\textcopyright} 2017 The Royal Society of Chemistry.",

year = "2017",

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doi = "10.1039/c7nr02093g",

language = "English",

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T1 - Magnetic field-induced enhancement of the nitrogen-vacancy fluorescence quantum yield

AU - Capelli, M.

AU - Reineck, P.

AU - Lau, D. W.M.

AU - Orth, A.

AU - Jeske, J.

AU - Doherty, M. W.

AU - Ohshima, T.

AU - Greentree, A. D.

AU - Gibson, B. C.

PY - 2017/7/21

Y1 - 2017/7/21

N2 - The nitrogen-vacancy (NV) centre in diamond is a unique optical defect that is used in many applications today and methods to enhance its fluorescence brightness are highly sought after. We observed experimentally an enhancement of the NV quantum yield by up to 7% in bulk diamond caused by an external magnetic field relative to the field-free case. This observation is rationalised phenomenologically in terms of a magnetic field dependence of the NV excited state triplet-to-singlet transition rate. The theoretical model is in good qualitative agreement with the experimental results at low excitation intensities. Our results significantly contribute to our fundamental understanding of the photophysical properties of the NV defect in diamond.

AB - The nitrogen-vacancy (NV) centre in diamond is a unique optical defect that is used in many applications today and methods to enhance its fluorescence brightness are highly sought after. We observed experimentally an enhancement of the NV quantum yield by up to 7% in bulk diamond caused by an external magnetic field relative to the field-free case. This observation is rationalised phenomenologically in terms of a magnetic field dependence of the NV excited state triplet-to-singlet transition rate. The theoretical model is in good qualitative agreement with the experimental results at low excitation intensities. Our results significantly contribute to our fundamental understanding of the photophysical properties of the NV defect in diamond.

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U2 - 10.1039/c7nr02093g

DO - 10.1039/c7nr02093g

M3 - Article

SN - 2040-3364

VL - 9

SP - 9299

EP - 9304

JO - Nanoscale

JF - Nanoscale

IS - 27

ER -

Magnetic field-induced enhancement of the nitrogen-vacancy fluorescence quantum yield

Abstract

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