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.

scholarly journals Characterization of the angular-dependent emission of nitrogen-vacancy centers in nanodiamond

2020 ◽  
Vol 126 (10) ◽  
Author(s):  
Justus Christinck ◽  
Beatrice Rodiek ◽  
Marco López ◽  
Helmuth Hofer ◽  
Hristina Georgieva ◽  
...  
Keyword(s):  
Single Photon ◽  
Collection Efficiency ◽  
Nitrogen Vacancy ◽  
Polarization Angle ◽  
Single Photon Emitters ◽  
Linearly Polarized ◽  
Nitrogen Vacancy Centers ◽  
Excitation Laser ◽  
Nv Centers

Abstract We report on the characterization of the angular-dependent emission of single-photon emitters based on single nitrogen-vacancy (NV-) centers in nanodiamond at room temperature. A theoretical model for the calculation of the angular emission patterns of such an NV-center at a dielectric interface will be presented. For the first time, the orientation of the NV-centers in nanodiamond was determined from back focal plane images of NV-centers and by comparison of the theoretical and experimental angular emission pattern. Furthermore, the orientation of the NV-centers was also obtained from measurements of the fluorescence intensity in dependence on the polarization angle of the linearly polarized excitation laser. The results of these measurements are in good agreement. Moreover, the collection efficiency in this setup was calculated to be higher than 80% using the model of the angular emission of the NV-centers.

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 Interaction of a heralded single photon with nitrogen-vacancy centers in a diamond

2021 ◽  
Vol 29 (2) ◽  
pp. 564
Author(s):  
Maria Gieysztor ◽  
Marta Misiaszek ◽  
Joscelyn van der Veen ◽  
Wojciech Gawlik ◽  
Fedor Jelezko ◽  
...  
Keyword(s):  
Single Photon ◽  
Nitrogen Vacancy ◽  
Nitrogen Vacancy Centers

Sample fabrication and metrological characterization of single-photon emitters based on nitrogen vacancy centers in nanodiamonds

2021 ◽  
Author(s):  
Franziska Hirt ◽  
Justus Christinck ◽  
Helmuth Hofer ◽  
Beatrice Rodiek ◽  
Stefan Kueck
Keyword(s):  
Laser Scanning ◽  
Single Photon ◽  
Photon Emission ◽  
Nitrogen Vacancy ◽  
Confocal Laser ◽  
Preparation Technique ◽  
Single Photon Emission ◽  
Comparative Characterization ◽  
Piranha Solution

Abstract Quantum metrology requires a stable single-photon emission and a high single-photon purity. Since nitrogen-vacancy (NV-) centers provide both features at room temperature, they are promising candidates for the application in this field [1, 2]. The knowledge about a suitable sample preparation technique is crucial, because the quality of the single-photon emission strongly depends on the sample purity and on the spatial resolvability of the emitters. This work presents the comparison and optimization of various sample fabrication techniques of nitrogen vacancy center doped nanodiamonds on standard cover glasses. The preparation is followed by a comparative characterization of the centers of the various samples. The sample fabrication includes the removal of contaminants on the cover glass surface. This was carried out by using peroxymonosulfuric acid (piranha solution, H2SO5) in comparison to the commercially available lye Hellmanex III (by Hellma Analytics). After cleaning the cover glasses, volumes of various nanodiamond dilutions were applied via spin coating. In subsequent steps, the nanodiamonds themselves were cleaned with peroxymonosulfuric acid, too, to remove contaminants resulting from the manufacturing process, e.g. graphite. The samples were analyzed by using a confocal laser scanning microscope with an oil immersion objective. Single-photon purity was determined by measuring the second order correlation function with a Hanbury Brown and Twiss setup. Spectral analysis revealed the presence of NV-- and NV0-centers. It was shown that a suitable cleansing method has an immense impact on single-photon emission, as was proven by a comparative characterization of differently manufactured nanodiamonds.

scholarly journals Purcell-Enhanced Single-Photon Emission from Nitrogen-Vacancy Centers Coupled to a Tunable Microcavity

2016 ◽  
Vol 6 (5) ◽  
Author(s):  
Hanno Kaupp ◽  
Thomas Hümmer ◽  
Matthias Mader ◽  
Benedikt Schlederer ◽  
Julia Benedikter ◽  
...  
Keyword(s):  
Single Photon ◽  
Photon Emission ◽  
Nitrogen Vacancy ◽  
Single Photon Emission ◽  
Nitrogen Vacancy Centers

A Bright Single-Photon Source from Nitrogen-Vacancy Centers in Diamond Nanowires

2017 ◽  
Vol 34 (9) ◽  
pp. 096101 ◽  
Author(s):  
Shen Li ◽  
Cui-Hong Li ◽  
Bo-Wen Zhao ◽  
Yang Dong ◽  
Cong-Cong Li ◽  
...  
Keyword(s):  
Single Photon ◽  
Nitrogen Vacancy ◽  
Single Photon Source ◽  
Nitrogen Vacancy Centers ◽  
Photon Source

Integrated and compact fiber-coupled single-photon system based on nitrogen-vacancy centers and gradient-index lenses

2012 ◽  
Vol 37 (14) ◽  
pp. 2901 ◽  
Author(s):  
Tim Schröder ◽  
Philip Engel ◽  
Eberhard Schmidt ◽  
Oliver Benson
Keyword(s):  
Single Photon ◽  
Nitrogen Vacancy ◽  
Gradient Index ◽  
Nitrogen Vacancy Centers

Enhancement of single-photon emission from nitrogen-vacancy centers with TiN/(Al,Sc)N hyperbolic metamaterial

2014 ◽  
Vol 9 (1) ◽  
pp. 120-127 ◽  
Author(s):  
Mikhail Y. Shalaginov ◽  
Vadim V. Vorobyov ◽  
Jing Liu ◽  
Marcello Ferrera ◽  
Alexey V. Akimov ◽  
...  
Keyword(s):  
Single Photon ◽  
Photon Emission ◽  
Nitrogen Vacancy ◽  
Single Photon Emission ◽  
Hyperbolic Metamaterial ◽  
Nitrogen Vacancy Centers
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