Controlling the fluorescence properties of nitrogen vacancy centers in nanodiamonds

Nanoscale ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 1770-1783 ◽  
Author(s):  
Christian Laube ◽  
Thomas Oeckinghaus ◽  
Jan Lehnert ◽  
Jan Griebel ◽  
Wolfgang Knolle ◽  
...  
Keyword(s):  
Formation Process ◽  
Nitrogen Vacancy ◽  
Fluorescence Properties ◽  
Surface Parameters ◽  
Nv Center ◽  
Nitrogen Vacancy Centers

Controlled enhancement of NV center fluorescence in nanodiamonds via control over the formation process and surface parameters.

scholarly journals Adjoint-optimized nanoscale light extractor for nitrogen-vacancy centers in diamond

Nanophotonics ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 393-401
Author(s):  
Raymond A. Wambold ◽  
Zhaoning Yu ◽  
Yuzhe Xiao ◽  
Benjamin Bachman ◽  
Gabriel Jaffe ◽  
...  
Keyword(s):  
Time Domain ◽  
Silicon Layer ◽  
Optical Power ◽  
Nitrogen Vacancy ◽  
Diamond Surface ◽  
Far Field ◽  
Fabrication Errors ◽  
Nv Center ◽  
Nitrogen Vacancy Centers ◽  
Bulk Diamond

AbstractWe designed a nanoscale light extractor (NLE) for the efficient outcoupling and beaming of broadband light emitted by shallow, negatively charged nitrogen-vacancy (NV) centers in bulk diamond. The NLE consists of a patterned silicon layer on diamond and requires no etching of the diamond surface. Our design process is based on adjoint optimization using broadband time-domain simulations and yields structures that are inherently robust to positioning and fabrication errors. Our NLE functions like a transmission antenna for the NV center, enhancing the optical power extracted from an NV center positioned 10 nm below the diamond surface by a factor of more than 35, and beaming the light into a ±30° cone in the far field. This approach to light extraction can be readily adapted to other solid-state color centers.

Luminescence landscapes of nitrogen-vacancy centers in diamond: quasi-localized vibrational resonances and selective coupling

2019 ◽  
Vol 7 (26) ◽  
pp. 8086-8091 ◽  
Author(s):  
Zhicheng Su ◽  
Zeyang Ren ◽  
Yitian Bao ◽  
Xiangzhou Lao ◽  
Jinfeng Zhang ◽  
...  
Keyword(s):  
Photoluminescence Spectrum ◽  
Room Temperature ◽  
Near Field ◽  
Nitrogen Vacancy ◽  
Atomic Arrangement ◽  
Local Atomic Arrangement ◽  
Nv Center ◽  
Nitrogen Vacancy Centers ◽  
Vibrational Resonances

77 K micro-photoluminescence spectrum, room-temperature near-field photoluminescence image, and a local atomic arrangement of the nitrogen-vacancy (NV) center in diamond.

Stacked metasurfaces for enhancing the emission and extraction rate of single nitrogen-vacancy centers in nanodiamond

2021 ◽  
Author(s):  
Megha Khokhar ◽  
Nitesh Singh ◽  
Rajesh V Nair
Keyword(s):  
Single Photon ◽  
Local Density ◽  
Two Dimensions ◽  
Nitrogen Vacancy ◽  
Light Sources ◽  
Single Quantum ◽  
Zero Phonon Line ◽  
Nv Center ◽  
Nitrogen Vacancy Centers ◽  
Field Radiation

Abstract Dielectric metasurfaces with unique possibilities of manipulating light-matter interaction lead to new insights in exploring spontaneous emission control using single quantum emitters. Here, we study the stacked metasurfaces in one- (1D) and two-dimensions (2D) to enhance the emission rate of a single quantum emitter using the associated optical resonances. The 1D structures with stacked bilayers are investigated to exhibit Tamm plasmon resonance optimized at the zero phonon line (ZPL) of the negative nitrogen-vacancy (NV-) center. The 2D stacked metasurface comprising of two-slots silicon nano-disks is studied for the Kerker condition at ZPL wavelength. The far-field radiation plots for the 1D and 2D stacked metasurfaces show an increased extraction efficiency rate for the NV- center at ZPL wavelength that reciprocates the localized electric field intensity. The modified local density of optical states results in large Purcell enhancement of 3.8 times and 25 times for the single NV- center integrated with 1D and 2D stacked metasurface, respectively. These results have implications in exploring stacked metasurfaces for applications such as single photon generation and CMOS compatible light sources for on-demand chip integration.

scholarly journals Nitrogen-vacancy centers in diamond for nanoscale magnetic resonance imaging applications

2019 ◽  
Vol 10 ◽  
pp. 2128-2151 ◽  
Author(s):  
Alberto Boretti ◽  
Lorenzo Rosa ◽  
Jonathan Blackledge ◽  
Stefania Castelletto
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Point Defect ◽  
Nitrogen Vacancy ◽  
Resonance Imaging ◽  
Magnetic Imaging ◽  
Nv Center ◽  
Nitrogen Vacancy Centers ◽  
Nv Centers

The nitrogen-vacancy (NV) center is a point defect in diamond with unique properties for use in ultra-sensitive, high-resolution magnetometry. One of the most interesting and challenging applications is nanoscale magnetic resonance imaging (nano-MRI). While many review papers have covered other NV centers in diamond applications, there is no survey targeting the specific development of nano-MRI devices based on NV centers in diamond. Several different nano-MRI methods based on NV centers have been proposed with the goal of improving the spatial and temporal resolution, but without any coordinated effort. After summarizing the main NV magnetic imaging methods, this review presents a survey of the latest advances in NV center nano-MRI.

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.

scholarly journals A robust fiber-based quantum thermometer coupled with nitrogen-vacancy centers

2021 ◽  
Vol 92 (4) ◽  
pp. 044904
Author(s):  
Shao-Chun Zhang ◽  
Yang Dong ◽  
Bo Du ◽  
Hao-Bin Lin ◽  
Shen Li ◽  
...  
Keyword(s):  
Nitrogen Vacancy ◽  
Nitrogen Vacancy Centers

scholarly journals Spin-Mechanics with Nitrogen-Vacancy Centers and Trapped Particles

Micromachines ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 651
Author(s):  
Maxime Perdriat ◽  
Clément Pellet-Mary ◽  
Paul Huillery ◽  
Loïc Rondin ◽  
Gabriel Hétet
Keyword(s):  
Degrees Of Freedom ◽  
Theoretical Background ◽  
Nitrogen Vacancy ◽  
Full Potential ◽  
Strongly Coupled ◽  
Trapped Particles ◽  
Quantum Regime ◽  
Atomic Spins ◽  
Nitrogen Vacancy Centers ◽  
Mechanical Oscillators

Controlling the motion of macroscopic oscillators in the quantum regime has been the subject of intense research in recent decades. In this direction, opto-mechanical systems, where the motion of micro-objects is strongly coupled with laser light radiation pressure, have had tremendous success. In particular, the motion of levitating objects can be manipulated at the quantum level thanks to their very high isolation from the environment under ultra-low vacuum conditions. To enter the quantum regime, schemes using single long-lived atomic spins, such as the electronic spin of nitrogen-vacancy (NV) centers in diamond, coupled with levitating mechanical oscillators have been proposed. At the single spin level, they offer the formidable prospect of transferring the spins’ inherent quantum nature to the oscillators, with foreseeable far-reaching implications in quantum sensing and tests of quantum mechanics. Adding the spin degrees of freedom to the experimentalists’ toolbox would enable access to a very rich playground at the crossroads between condensed matter and atomic physics. We review recent experimental work in the field of spin-mechanics that employ the interaction between trapped particles and electronic spins in the solid state and discuss the challenges ahead. Our focus is on the theoretical background close to the current experiments, as well as on the experimental limits, that, once overcome, will enable these systems to unleash their full potential.

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