scholarly journals Simultaneous imaging of magnetic field and temperature using a wide-field quantum diamond microscope

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Yulei Chen ◽  
Zhonghao Li ◽  
Hao Guo ◽  
Dajin Wu ◽  
Jun Tang
Keyword(s):  
Magnetic Field ◽  
Spatial Resolution ◽  
Imaging Technique ◽  
Field Of View ◽  
Nitrogen Vacancy ◽  
Wide Field ◽  
Simultaneous Imaging ◽  
Quantum Sensing ◽  
Nitrogen Vacancy Centers

AbstractQuantum sensing based on nitrogen-vacancy centers in diamond has shown excellent properties. Combined with the imaging technique, it shows exciting practicability. Here, we demonstrate the simultaneously imaging technique of magnetic field and temperature using a wide-field quantum diamond microscope. We describe the operating principles of the diamond microscope and report its sensitivity (magnetic field ${\sim}1.8~\mu \mbox{T/Hz}^{1/2}$ ∼ 1.8 μ T/Hz 1 / 2 and temperature ${\sim}0.4~\mbox{K/Hz}^{1/2}$ ∼ 0.4 K/Hz 1 / 2 ), spatial resolution (1.3 μm), and field of view ($400 \times 300~\mu \mbox{m}^{2}$ 400 × 300 μ m 2 ). Finally, we use the microscope to obtain images of an integrated cell heater and a PCB, demonstrating its ability in the application of magnetic field and temperature simultaneously imaging at wide-field.

scholarly journals Novel Magnetic-Sensing Modalities with Nitrogen-Vacancy Centers in Diamond*

2021 ◽  
Author(s):  
Huijie Zheng ◽  
Arne Wickenbrock ◽  
Georgios Chatzidrosos ◽  
Lykourgos Bougas ◽  
Nathan Leefer ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Spatial Resolution ◽  
Quantum Coherence ◽  
Nitrogen Vacancy ◽  
Atomic Scale ◽  
Magnetic Sensing ◽  
Weak Magnetic Fields ◽  
Nitrogen Vacancy Centers ◽  
Magnetic Sensitivity ◽  
Nv Centers

In modern-day quantum metrology, quantum sensors are widely employed to detect weak magnetic fields or nanoscale signals. Quantum devices, exploiting quantum coherence, are inevitably connected to physical constants and can achieve accuracy, repeatability, and precision approaching fundamental limits. As a result, these sensors have shown utility in a wide range of research domains spanning both science and technology. A rapidly emerging quantum sensing platform employs atomic-scale defects in crystals. In particular, magnetometry using nitrogen-vacancy (NV) color centers in diamond has garnered increasing interest. NV systems possess a combination of remarkable properties, optical addressability, long coherence times, and biocompatibility. Sensors based on NV centers excel in spatial resolution and magnetic sensitivity. These diamond-based sensors promise comparable combination of high spatial resolution and magnetic sensitivity without cryogenic operation. The above properties of NV magnetometers promise increasingly integrated quantum measurement technology, as a result, they have been extensively developed with various protocols and find use in numerous applications spanning materials characterization, nuclear magnetic resonance (NMR), condensed matter physics, paleomagnetism, neuroscience and living systems biology, and industrial vector magnetometry. In this chapter, NV centers are explored for magnetic sensing in a number of contexts. In general, we introduce novel regimes for magnetic-field probes with NV ensembles. Specifically, NV centers are developed for sensitive magnetometers for applications where microwaves (MWs) are prohibitively invasive and operations need to be carried out under zero ambient magnetic field. The primary goal of our discussion is to improve the utility of these NV center-based magnetometers.

scholarly journals Magnetic Field Mapping Around Individual Magnetic Nanoparticle Agglomerates Using Nitrogen‐Vacancy Centers in Diamond

2021 ◽  
pp. 2100011
Author(s):  
Filipe Camarneiro ◽  
Juanita Bocquel ◽  
Juan Gallo ◽  
Manuel Bañobre‐López ◽  
Kirstine Berg‐Sørensen ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Nanoparticle ◽  
Nitrogen Vacancy ◽  
Field Mapping ◽  
Magnetic Field Mapping ◽  
Nitrogen Vacancy Centers ◽  
Nanoparticle Agglomerates

scholarly journals Investigation of evaporation of sessile droplets using luminescent nano-probes and other applications of NV centers in diamond

2018 ◽  
Vol 190 ◽  
pp. 02008
Author(s):  
Taras Plakhotnik ◽  
Haroon Aman
Keyword(s):  
Fluid Mechanics ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Solid Substrate ◽  
Model System ◽  
Nitrogen Vacancy ◽  
Dynamic Processes ◽  
Nitrogen Vacancy Centers ◽  
Nv Centers

The paper describes application of diamond nano crystals to research on dynamic processes in small (less than 1 mm across) evaporating droplets deposited on a solid substrate. Such droplets are used as a model system for testing proposed bio applications of nitrogen-vacancy centers in diamond. We demonstrate that a high spatial resolution of our methods reveals unexpected features of the evaporation and fluid mechanics in such droplets.

scholarly journals A wide field-of-view imaging DOAS instrument for two-dimensional trace gas mapping from aircraft

2015 ◽  
Vol 8 (12) ◽  
pp. 5113-5131 ◽  
Author(s):  
A. Schönhardt ◽  
P. Altube ◽  
K. Gerilowski ◽  
S. Krautwurst ◽  
J. Hartmann ◽  
...  
Keyword(s):  
Spatial Resolution ◽  
Point Sources ◽  
West Germany ◽  
Field Of View ◽  
Trace Gas ◽  
Optical Absorption Spectroscopy ◽  
Small Scale ◽  
Wide Field ◽  
Flight Altitude ◽  
Good Imaging

Abstract. The Airborne imaging differential optical absorption spectroscopy (DOAS) instrument for Measurements of Atmospheric Pollution (AirMAP) has been developed for the purpose of trace gas measurements and pollution mapping. The instrument has been characterized and successfully operated from aircraft. Nitrogen dioxide (NO2) columns were retrieved from the AirMAP observations. A major benefit of the push-broom imaging instrument is the spatially continuous, gap-free measurement sequence independent of flight altitude, a valuable characteristic for mapping purposes. This is made possible by the use of a charge coupled device (CCD) frame-transfer detector. A broad field of view across track of around 48° is achieved with wide-angle entrance optics. This leads to a swath width of about the same size as the flight altitude. The use of fibre coupled light intake optics with sorted light fibres allows flexible instrument positioning within the aircraft and retains the very good imaging capabilities. The measurements yield ground spatial resolutions below 100 m depending on flight altitude. The number of viewing directions is chosen from a maximum of 35 individual viewing directions (lines of sight, LOS) represented by 35 individual fibres. The selection is adapted to each situation by averaging according to signal-to-noise or spatial resolution requirements. Observations at 30 m spatial resolution are obtained when flying at 1000 m altitude and making use of all 35 viewing directions. This makes the instrument a suitable tool for mapping trace gas point sources and small-scale variability. The position and aircraft attitude are taken into account for accurate spatial mapping using the Attitude and Heading Reference System of the aircraft. A first demonstration mission using AirMAP was undertaken in June 2011. AirMAP was operated on the AWI Polar-5 aircraft in the framework of the AIRMETH-2011 campaign. During a flight above a medium-sized coal-fired power plant in north-west Germany, AirMAP clearly detected the emission plume downwind from the exhaust stack, with NO2 vertical columns around 2 × 1016 molecules cm−2 in the plume centre. NOx emissions estimated from the AirMAP observations are consistent with reports in the European Pollutant Release and Transfer Register. Strong spatial gradients and variability in NO2 amounts across and along flight direction are observed, and small-scale enhancements of NO2 above a motorway are detected.

scholarly journals Precision temperature sensing in the presence of magnetic field noise and vice-versa using nitrogen-vacancy centers in diamond

2018 ◽  
Vol 113 (1) ◽  
pp. 013502 ◽  
Author(s):  
Adam M. Wojciechowski ◽  
Mürsel Karadas ◽  
Christian Osterkamp ◽  
Steffen Jankuhn ◽  
Jan Meijer ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Temperature Sensing ◽  
Nitrogen Vacancy ◽  
Nitrogen Vacancy Centers ◽  
Precision Temperature ◽  
Field Noise

Weak Magnetic Field Resonance Effects in Diamond with Nitrogen-Vacancy Centers

2018 ◽  
Vol 52 (14) ◽  
pp. 1865-1867
Author(s):  
D. S. Filimonenko ◽  
V. M. Yasinskii ◽  
A. P. Nizovtsev ◽  
S. Ya. Kilin
Keyword(s):  
Magnetic Field ◽  
Weak Magnetic Field ◽  
Nitrogen Vacancy ◽  
Resonance Effects ◽  
Nitrogen Vacancy Centers

scholarly journals Comparison of back focal plane imaging of nitrogen vacancy centers in nanodiamond and core-shell CdSe/CdS quantum dots

2022 ◽  
Vol 2149 (1) ◽  
pp. 012014
Author(s):  
J Christinck ◽  
B Rodiek ◽  
M López ◽  
H Georgieva ◽  
H Hofer ◽  
...  
Keyword(s):  
Focal Plane ◽  
Single Photon ◽  
Imaging Technique ◽  
Nitrogen Vacancy ◽  
Core Shell ◽  
Single Photon Emitters ◽  
Cds Quantum Dot ◽  
Orientation Experiment ◽  
Nitrogen Vacancy Centers

Abstract We report on the characterization of the angular-dependent emission of two different single-photon emitters based on nitrogen-vacancy centers in nanodiamond and on core-shell CdSe/CdS quantum dot nanoparticles. The emitters were characterized in a confocal microscope setup by spectroscopy and Hanbury-Brown and Twiss interferometry. The angular-dependent emission is measured using a back focal plane imaging technique. A theoretical model of the angular emission patterns of the 2D dipoles of the emitters is developed to determine their orientation. Experiment and model agree well with each other.

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