Optical studies of the 1.40-eV Ni center in diamond

Nazaré, Maria Helena; Neves, A.J.; Davies, Gordon

doi:10.1103/physrevb.43.14196

Cited by 104 publications

(71 citation statements)

References 9 publications

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“…A nickel or a silicon only implantation into the same crystal did not result in the formation of this specific emission line ( Figure 5.10b). Note that the doublet around 883/885 nm is associated with a known nickel defect in diamond [84,85] and as expected appears in both nickel implantations.…”

Section: Implantation Into Cvd Grown Sub-micron Diamond Crystalssupporting

confidence: 72%

“…Both lines split into multiplets in which the line intensity corresponds to the natural abundance of nickel isotopes (can be seen at ~10 K). Using electron spin resonance techniques, the center was assigned to a Ni + ion in the center of a di-vacancy in a diamond lattice [84] where the nickel atom is probably not bonded to the neighboring carbon atoms. Uniaxial stress techniques revealed trigonal symmetry of the defect.…”

Section: The 883/885 Nm Center (14 Ev Center)mentioning

confidence: 99%

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Novel Single Photon Emitters Based on Color Centers in Diamond

Aharonovich¹,

Castelletto²,

Prawer³

2011

AIP Conference Proceedings

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Exploitation of emerging quantum technologies requires efficient fabrication of key building blocks. Single photon sources are one of these fundamental constituents that are presently pushing the bounds of existing materials and fabrication techniques. Color centers in diamond are very attractive in this respect since they are the only photostable solid-state single photon emitters operating at room temperature known to date.The Nitrogen-Vacancy (NV) complex is one example of such an optical center and has been subject to intensive research due to the availability of optical readout of its individual electronic spin state. However, the NV center has fundamental limitations: strong phonon coupling of the excited state which results in a broad photoluminescence spectrum (~ 100 nm) of which the zero-phonon line makes up only 4%. Emission of single photons in the zero phonon line is then extremely weak, typically on the order of a few thousands of photons per second. Such count rates are insufficient for the realization of advanced quantum information processing protocols.To move beyond the limitations of the NV there is an emerging need to identify and fabricate novel diamond based single photon emitters with improved photo-physical characteristics. Development of such emitters is the main goal of this thesis.We first concentrate on the recent progress in materials science and fabrication techniques of high quality nanodiamond crystals. We demonstrate the ability to grow high quality, submicron sized diamond crystals with a control over their final size and density using a microwave assisted chemical vapor deposition.We then study two methodologies to engineer diamond based single photon emitters in the grown nanodiamonds. In the first, nickel is implanted into the substrate onto which the nanocrystals are subsequently grown. During the diamond growth, the substrate is slightly etched and the nickel atoms diffuse and incorporate into the growing crystals. In the second we employ direct ion implantation of nickel into already deposited individual diamond nanocrystals. Optical and correlation spectroscopy measurements reveal that these methodologies are effective to fabricate nickel related single photon emitters, with zero phonon lines centered in the near infra-red and a short excited state lifetime (~3 ns).ii Furthermore, the ability of diamond to host various luminescence centers prompted the discovery of a new class of ultra bright single photon emitters. These new emitters found in diamond crystals grown on sapphire substrate and assigned to chromium, which is present in the substrate and incorporated into the crystal during the growth. Nanodiamonds hosting these centers deliver outstanding performance such as narrow photoluminescence in the near infra-red and ultra bright single photon emission with count rate of ~ 3.2×10 6 counts/s -the brightest single photon source known to date.Importantly, some of the emitters exhibit a photon statistics without any photon bunching at saturation, indicating a two-...

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Section: Implantation Into Cvd Grown Sub-micron Diamond Crystalssupporting

confidence: 72%

Section: The 883/885 Nm Center (14 Ev Center)mentioning

confidence: 99%

Novel Single Photon Emitters Based on Color Centers in Diamond

Aharonovich¹,

Castelletto²,

Prawer³

2011

AIP Conference Proceedings

View full text Add to dashboard Cite

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“…From an experimental point of view, the various lines detected by electronic paramagnetic resonance (EPR) [31][32][33][34][35][36] or by magneto-optical (including magnetic circular dichroism) or piezo-optical spectroscopy 21,[37][38][39] have been attributed to specific incorporation sites of Ni in diamond. This has been a challenge since the early days when it was recognized that an isolated Ni atom was incorporated in a site of trigonal symmetry at low temperatures (below 25 K) changing over to a tetrahedral symmetry at higher temperatures.…”

Section: Introductionmentioning

confidence: 99%

Investigation of nickel lattice sites in diamond: Density functional theory and x-ray absorption near-edge structure experiments

et al. 2012

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Possible lattice incorporation sites for Ni in diamond have been investigated using ab initio density functional theoretical calculations. The results have been used to compute x-ray absorption near-edge structure spectra which were compared to spectroscopic measurements performed on a diamond single crystal grown at high pressure and high temperature in a nickel solvent. Ni at divacancy sites is proposed to be the most stable and probable configuration in this crystal.

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“…In this report we discuss the Ni-related (1.4 eV) center observed in the as-received ND [16,17] excited with ultraviolet light and with two-photon femtosecond excitation in infrared range with fluorescence detected in the near-infrared range (with peak near 885 nm). The effects of ND size, temperature and excitation conditions on the emission are discussed.…”

Section: Introductionmentioning

confidence: 95%

Near-Infrared Fluorescence from Nanodiamond for Multimodal Bioimaging

Lin¹,

Tsai²,

Perevedentseva³

et al. 2018

Sovrem Tehnol Med

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Nanodiamonds (ND) are emerging as a promising candidate for the multimodal bioimaging due to their optical and spectroscopic properties. Fluorescence properties of ND are determined by defects and admixtures in the crystal lattice. The most developed bioapplications of the ND fluorescence are using nitrogen-vacancy centers. However they emit fluorescence in the visible region which overlaps with the autofluorescence from biological objects.The aim of the study was to analyze the fluorescence of nickel-related color center in nanodiamond with emission in the near-infrared range (883-885 nm) in terms of its applications for bioimaging using one-photon and two-photon excitations.Materials and Methods. Synthetic diamond powders (Kay Diamond, USA) of sizes in the range from 100 nm to 2.5 μm were carboxylated and characterized with Raman and photoluminescence spectroscopy at one-photon and two-photon excitation. Baby hamster kidney cells were treated with 500 nm ND for 8 h and subjected to microscopic investigations using laser confocal fluorescence scanning microscopy and photoluminescence mapping.Results. The effects of the particles size, temperature and excitation conditions on the fluorescence of Ni-related center are studied. Variability of the emission with sizes (as well as with excitation wavelength and temperature) gives the possibility to select the most suitable nano-or microparticles to use as a fluorescent probe. The two-photon excitation of Ni centers in nano-and microdiamond are demonstrated. The possibility to use Ni color center for bioimaging is presented using confocal fluorescence imaging and fluorescence mapping of distribution of 500 nm ND in baby hamster kidney cells. The emission of Ni-related center (885 nm) showing no photobleaching and no damage to the baby hamster kidney cells and the location of ND is clearly observed relatively the cells.Conclusion. Fluorescence from Ni-related color center at one-photon and two-photon excitation can be an option in biological imaging to avoid cell autofluorescence and to shift the excitation to lower energy laser excitation which is safer and transparent for biological objects.Key words: nanodiamond; Ni-related defects; near-infrared emission; color center; fluorescence; bioimaging. Corresponding author: Chia-Liang Cheng, e-mail: clcheng@gms.ndhu.edu.tw RussianФлюоресценция наноалмазов в ближнем инфракрасном диапазоне. Использование для мультимодального биоимиджингаОптические и спектральные свойства наноалмазов в настоящее время рассматриваются с точки зрения применения в биоме-дицинских исследованиях, в частности как флюоресцентные метки для биоимиджинга. Флюоресценция наноалмазов определяется в первую очередь дефектами и примесями в кристаллической решетке. Наиболее хорошо изученными и используемыми флюорес-центыми центрами в наноалмазах являются азотные вакансии. Однако они излучают в видимой области спектра и их излучение перекрывается с автофлюоресценцией большинства биологических объектов.Цель исследования -изучение флюоресценции никелевого центра...

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Optical studies of the 1.40-eV Ni center in diamond

Cited by 104 publications

References 9 publications

Novel Single Photon Emitters Based on Color Centers in Diamond

Novel Single Photon Emitters Based on Color Centers in Diamond

Investigation of nickel lattice sites in diamond: Density functional theory and x-ray absorption near-edge structure experiments

Near-Infrared Fluorescence from Nanodiamond for Multimodal Bioimaging

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