Nitrogen vacancy centres in diamond for laser threshold magnetometry

2019 ◽  
Author(s):  
Zahraa Al-Baiaty ◽  
Felix Hahl ◽  
Sarath Nair ◽  
Lachlan Rogers ◽  
Brant C. Gibson ◽  
...  
Keyword(s):  
Nitrogen Vacancy ◽  
Laser Threshold

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

Nanophotonics ◽  
2020 ◽  
Vol 9 (15) ◽  
pp. 4505-4518
Author(s):  
Sarath Raman Nair ◽  
Lachlan J. Rogers ◽  
Xavier Vidal ◽  
Reece P. Roberts ◽  
Hiroshi Abe ◽  
...  
Keyword(s):  
Room Temperature ◽  
Gain Medium ◽  
Stimulated Emission ◽  
Nitrogen Vacancy ◽  
Qualitative Model ◽  
Seed Laser ◽  
Laser Threshold ◽  
Cavity System ◽  
Emission Changes ◽  
532 Nm

AbstractLaser 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.

scholarly journals Absorptive laser threshold magnetometry: combining visible diamond Raman lasers and nitrogen-vacancy centres

2021 ◽  
Author(s):  
Sarath Raman Nair ◽  
Lachlan J Rogers ◽  
David J Spence ◽  
R P Mildren ◽  
Fedor Jelezko ◽  
...  
Keyword(s):  
Nitrogen Vacancy ◽  
Laser Threshold ◽  
Raman Lasers

Quantum optics with nitrogen-vacancy centres in diamond

2017 ◽  
Author(s):  
Yiwen Chu ◽  
Mikhail D. Lukin
Keyword(s):  
Optical Properties ◽  
Quantum Information ◽  
Solid State ◽  
Quantum Optics ◽  
Quantum States ◽  
Nitrogen Vacancy ◽  
Common Theme ◽  
External Effects ◽  
Promising Candidate ◽  
Optical Photons

A common theme in the implementation of quantum technologies involves addressing the seemingly contradictory needs for controllability and isolation from external effects. Undesirable effects of the environment must be minimized, while at the same time techniques and tools must be developed that enable interaction with the system in a controllable and well-defined manner. This chapter addresses several aspects of this theme with regard to a particularly promising candidate for developing applications in both metrology and quantum information, namely the nitrogen-vacancy (NV) centre in diamond. The chapter describes how the quantum states of NV centres can be manipulated, probed, and efficiently coupled with optical photons. It also discusses ways of tackling the challenges of controlling the optical properties of these emitters inside a complex solid state environment.

scholarly journals A CMOS-integrated quantum sensor based on nitrogen–vacancy centres

2019 ◽  
Vol 2 (7) ◽  
pp. 284-289 ◽  
Author(s):  
Donggyu Kim ◽  
Mohamed I. Ibrahim ◽  
Christopher Foy ◽  
Matthew E. Trusheim ◽  
Ruonan Han ◽  
...  
Keyword(s):  
Nitrogen Vacancy

Vector magnetometry using perfectly aligned nitrogen-vacancy center ensemble in diamond

2021 ◽  
Vol 118 (26) ◽  
pp. 264002
Author(s):  
Moeta Tsukamoto ◽  
Kensuke Ogawa ◽  
Hayato Ozawa ◽  
Takayuki Iwasaki ◽  
Mutsuko Hatano ◽  
...  
Keyword(s):  
Nitrogen Vacancy ◽  
Nitrogen Vacancy Center ◽  
Vacancy Center

Hybrid communication assisted by coherent oscillator using resonant excitation of Nitrogen-vacancy center in diamond

2021 ◽  
pp. 127073
Author(s):  
Faisal Nadeem ◽  
Faizan Raza ◽  
Kangkang Li ◽  
Huanrong Fan ◽  
Irfan Ahmed ◽  
...  
Keyword(s):  
Resonant Excitation ◽  
Nitrogen Vacancy ◽  
Nitrogen Vacancy Center ◽  
Vacancy Center

scholarly journals Sensing Electrochemical Signals Using a Nitrogen-Vacancy Center in Diamond

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 358
Author(s):  
Hossein T. Dinani ◽  
Enrique Muñoz ◽  
Jeronimo R. Maze
Keyword(s):  
Electric Field ◽  
Electron Spin ◽  
Electrolyte Solution ◽  
High Sensitivity ◽  
Theoretical Work ◽  
Coherence Time ◽  
Nitrogen Vacancy ◽  
Local Concentration ◽  
Concentration Of Ions ◽  
Nv Center

Chemical sensors with high sensitivity that can be used under extreme conditions and can be miniaturized are of high interest in science and industry. The nitrogen-vacancy (NV) center in diamond is an ideal candidate as a nanosensor due to the long coherence time of its electron spin and its optical accessibility. In this theoretical work, we propose the use of an NV center to detect electrochemical signals emerging from an electrolyte solution, thus obtaining a concentration sensor. For this purpose, we propose the use of the inhomogeneous dephasing rate of the electron spin of the NV center (1/T2★) as a signal. We show that for a range of mean ionic concentrations in the bulk of the electrolyte solution, the electric field fluctuations produced by the diffusional fluctuations in the local concentration of ions result in dephasing rates that can be inferred from free induction decay measurements. Moreover, we show that for a range of concentrations, the electric field generated at the position of the NV center can be used to estimate the concentration of ions.

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