Amplification by stimulated emission of nitrogen-vacancy centres in a diamond-loaded fibre cavity

Sarath Raman Nair; Lachlan J. Rogers; Xavier Vidal; Reece P. Roberts; Hiroshi Abe; Takeshi Ohshima; Takashi Yatsui; Andrew D. Greentree; Jan Jeske; Thomas Volz

doi:10.1515/nanoph-2020-0305

Amplification by stimulated emission of nitrogen-vacancy centres in a diamond-loaded fibre cavity

Sarath Raman Nair^*
, Lachlan J. Rogers
, Xavier Vidal
, Reece P. Roberts
, Hiroshi Abe
, Takeshi Ohshima
, Takashi Yatsui
, Andrew D. Greentree
, Jan Jeske
, Thomas Volz

^*Corresponding author for this work

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

26 Citations (Scopus)

Abstract

Laser threshold magnetometry using the negatively charged nitrogen-vacancy (NV-) centre in diamond as a gain medium has been proposed as a technique to dramatically enhance the sensitivity of room-temperature magnetometry. We experimentally explore a diamond-loaded open tunable fibre-cavity system as a potential contender for the realisation of lasing with NV- centres. We observe amplification of the transmission of a cavity-resonant seed laser at 721 nm when the cavity is pumped at 532 nm and attribute this to stimulated emission. Changes in the intensity of spontaneously emitted photons accompany the amplification, and a qualitative model including stimulated emission and ionisation dynamics of the NV- centre captures the dynamics in the experiment very well. These results highlight important considerations in the realisation of an NV- laser in diamond.

Original language	English
Pages (from-to)	4505-4518
Number of pages	14
Journal	Nanophotonics
Volume	9
Issue number	15
DOIs	https://doi.org/10.1515/nanoph-2020-0305
Publication status	Published - 1 Nov 2020
Externally published	Yes

Keywords

NV charge state switching
NV-stimulated emission
diamond colour centres
fibre cavity
laser threshold magnetometry
nitrogen-vacancy centres

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10.1515_nanoph-2020-0305Final published version, 1.17 MBLicence: CC BY

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title = "Amplification by stimulated emission of nitrogen-vacancy centres in a diamond-loaded fibre cavity",

abstract = "Laser threshold magnetometry using the negatively charged nitrogen-vacancy (NV-) centre in diamond as a gain medium has been proposed as a technique to dramatically enhance the sensitivity of room-temperature magnetometry. We experimentally explore a diamond-loaded open tunable fibre-cavity system as a potential contender for the realisation of lasing with NV- centres. We observe amplification of the transmission of a cavity-resonant seed laser at 721 nm when the cavity is pumped at 532 nm and attribute this to stimulated emission. Changes in the intensity of spontaneously emitted photons accompany the amplification, and a qualitative model including stimulated emission and ionisation dynamics of the NV- centre captures the dynamics in the experiment very well. These results highlight important considerations in the realisation of an NV- laser in diamond.",

keywords = "NV charge state switching, NV-stimulated emission, diamond colour centres, fibre cavity, laser threshold magnetometry, nitrogen-vacancy centres",

author = "\{Raman Nair\}, Sarath and Rogers, \{Lachlan J.\} and Xavier Vidal and Roberts, \{Reece P.\} and Hiroshi Abe and Takeshi Ohshima and Takashi Yatsui and Greentree, \{Andrew D.\} and Jan Jeske and Thomas Volz",

note = "Publisher Copyright: {\textcopyright} 2020 Sarath Raman Nair et al., published by De Gruyter, Berlin/Boston 2020.",

year = "2020",

month = nov,

day = "1",

doi = "10.1515/nanoph-2020-0305",

language = "English",

volume = "9",

pages = "4505--4518",

journal = "Nanophotonics",

issn = "2192-8606",

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TY - JOUR

T1 - Amplification by stimulated emission of nitrogen-vacancy centres in a diamond-loaded fibre cavity

AU - Raman Nair, Sarath

AU - Rogers, Lachlan J.

AU - Vidal, Xavier

AU - Roberts, Reece P.

AU - Abe, Hiroshi

AU - Ohshima, Takeshi

AU - Yatsui, Takashi

AU - Greentree, Andrew D.

AU - Jeske, Jan

AU - Volz, Thomas

PY - 2020/11/1

Y1 - 2020/11/1

N2 - Laser threshold magnetometry using the negatively charged nitrogen-vacancy (NV-) centre in diamond as a gain medium has been proposed as a technique to dramatically enhance the sensitivity of room-temperature magnetometry. We experimentally explore a diamond-loaded open tunable fibre-cavity system as a potential contender for the realisation of lasing with NV- centres. We observe amplification of the transmission of a cavity-resonant seed laser at 721 nm when the cavity is pumped at 532 nm and attribute this to stimulated emission. Changes in the intensity of spontaneously emitted photons accompany the amplification, and a qualitative model including stimulated emission and ionisation dynamics of the NV- centre captures the dynamics in the experiment very well. These results highlight important considerations in the realisation of an NV- laser in diamond.

AB - Laser threshold magnetometry using the negatively charged nitrogen-vacancy (NV-) centre in diamond as a gain medium has been proposed as a technique to dramatically enhance the sensitivity of room-temperature magnetometry. We experimentally explore a diamond-loaded open tunable fibre-cavity system as a potential contender for the realisation of lasing with NV- centres. We observe amplification of the transmission of a cavity-resonant seed laser at 721 nm when the cavity is pumped at 532 nm and attribute this to stimulated emission. Changes in the intensity of spontaneously emitted photons accompany the amplification, and a qualitative model including stimulated emission and ionisation dynamics of the NV- centre captures the dynamics in the experiment very well. These results highlight important considerations in the realisation of an NV- laser in diamond.

KW - NV charge state switching

KW - NV-stimulated emission

KW - diamond colour centres

KW - fibre cavity

KW - laser threshold magnetometry

KW - nitrogen-vacancy centres

UR - https://www.scopus.com/pages/publications/85092698892

U2 - 10.1515/nanoph-2020-0305

DO - 10.1515/nanoph-2020-0305

M3 - Article

AN - SCOPUS:85092698892

SN - 2192-8606

VL - 9

SP - 4505

EP - 4518

JO - Nanophotonics

JF - Nanophotonics

IS - 15

ER -

Amplification by stimulated emission of nitrogen-vacancy centres in a diamond-loaded fibre cavity

Abstract

Keywords

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