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.

Design, Fabrication and Characterization of Si3N4 Photonic Crystal Nanocavities for Diamond-based Quantum Information Processing Applications

2008 ◽  
Vol 1145 ◽  
Author(s):  
Mughees Khan ◽  
Murray W. McCutcheon ◽  
Thomas Babinec ◽  
Parag Deotare ◽  
Marko Lončar
Keyword(s):  
Photonic Crystal ◽  
Silicon Nitride ◽  
Production Rate ◽  
Collection Efficiency ◽  
Radiative Lifetime ◽  
Photon Production ◽  
Nitrogen Vacancy ◽  
Cavity Resonance ◽  
Zero Phonon Line ◽  
Nv Center

AbstractIn order to improve the efficiency of quantum emitters, in particular nitrogen-vacancy (NV) color centers in diamond nanocrystals (NCs), it is important to enhance their photon production rate as well as the collection efficiency of the emitted photons. This can be achieved by embedding the emitters within optical cavities. Here we describe the design and fabrication of 1-D photonic crystal nanocavities in an air-bridge silicon nitride (SiNx) structure. In spite of the low index of silicon nitride (n˜2), we were able to design optical nanocavities with Quality factors as high as Q˜1 × 106. These nanocavities were designed to operate near 637 nm in order to strongly enhance the zero-phonon line (ZPL) emission of an NV center in a diamond NC while suppressing the in-plane emission into the phonon side-band. Simulation results show that a NV center placed near the top of the cavity would experience a reduction of radiative lifetime from ˜15ns to ˜2ps (Purcell factor ˜7000), thus significantly improving the photon production rate. Experimental results show a cavity resonance at ˜630nm, with a linewidth corresponding to Q˜1250, limited by the spectrometer resolution. The presented work is an important step towards the realization of diamond-based single photon devices, including switches.

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 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.

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
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