Spectroscopic study of NE8 defect in synthetic diamond for optical thermometry

Силдос, И.; Loot, Ardi; Kiisk, V.; Puust, Laurits; Hizhnyakov, V.; Yelisseyev, A.; Osvet, Andres; Власов, И. И.

doi:10.1016/j.diamond.2017.04.002

Cited by 22 publications

(19 citation statements)

References 23 publications

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“…Fan the dependence was proposed to be $aT 3 þ b; with the more conventional $aT 4 that takes into account lattice contraction and quadratic electron-phonon coupling; by adding the term þbT 2 to the aT 4 approximation model one takes into account the softening of bonds caused by degeneracy for the excited electronic state. [14,17,19] The last proposal is in accordance with results of modelling which show that the excited electronic state of GeV defect is degenerated. [18] By measurement of the mean square weighted deviation (reduced chi-square), we found the best fit to be aT 4 þ bT 2 .…”

Section: Resultssupporting

confidence: 87%

Toward Performance and Applications of Large Area Optical Thermometry Based on the Luminescence of Germanium‐Vacancy Defects in Diamond Nanocrystals

Miller

Puust

Екимов

et al. 2020

Physica Status Solidi (a)

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Herein optical properties of aggregates of hydrophobic nanodiamonds (NDs) with germanium‐vacancy (GeV) defects distributed on substrates with different hydrophilicities (bare Si or TiO2 (anatase) film on Si substrate) are investigated with an aim to achieve millimeter‐scale, nearly homogeneous spatial distribution of ND aggregates. ND aggregates are spread by drop casting of a water colloid. The luminescence spectra of GeV defects are studied in a wide temperature range (85–400 K). The possibility of optical thermometry operating in a wide temperature range also covering biotemperatures is demonstrated using a separate microaggregate of NDs on the anatase film.

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Section: Resultssupporting

confidence: 87%

Toward Performance and Applications of Large Area Optical Thermometry Based on the Luminescence of Germanium‐Vacancy Defects in Diamond Nanocrystals

Miller

Puust

Екимов

et al. 2020

Physica Status Solidi (a)

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“…214,[437][438][439] Transition-metal-nitrogen aggregates are also occasionally found in natural diamond, but at much lower concentrations than found in lab-grown diamond. 440 Ni-related defects have attracted particular interest as a potential rival to NV centres as a singlephoton source, 441 and in vivo biomarker/thermometry 442,443 applications, though more recent measurements indicate their optical properties are less favourable than the group-IV-vacancy defects (see below). 444 Ni is readily incorporated substitutionally during HPHT growth.…”

Section: Selected Aggregates Involving Nitrogen and Another Elementmentioning

confidence: 99%

“…Of those NiVNn aggregates listed in Table 4, NE8 has attracted most interest as it has the potential to be used in quantum information processing 444,461 and biological applications. 442 The NE8 defect is correlated with a strong luminescence peak in the near IR at 793.6 nm, where commercial low-loss fibre optics are available to enable long-range quantum communication. 462 This defect also has a higher intensity and narrower bandwidth than rival NV defects, and a shorter lifetime of 3 ns.…”

Section: Selected Aggregates Involving Nitrogen and Another Elementmentioning

confidence: 99%

Nitrogen in Diamond

et al. 2020

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Nitrogen is ubiquitous in both natural and laboratory-grown diamond, but the number and nature of the nitrogen-containing defects can have a profound effect on the diamond material and its properties. An ever-growing fraction of the supply of diamond appearing on the world market is now lab-grown. Here, we survey recent progress in two complementary diamond synthesis methodshigh pressure high temperature (HPHT) growth and chemical vapour deposition (CVD), how each is allowing ever more precise control of nitrogen incorporation in the resulting diamond, and how the diamond produced by either method can be further processed (e.g. by implantation and/or annealing) to achieve a particular outcome or property. The burgeoning availability of diamond samples grown under well-defined conditions has also enabled huge advances in the characterization and understanding of nitrogen-containing defects in diamondalone, and in association with vacancies, hydrogen and transition metal atoms. Amongst these, the negatively charged nitrogen-vacancy (NV −) defect in diamond is attracting particular current interest on account of the many new and exciting opportunities it offers for, e.g., quantum technologies, nanoscale magnetometry and biosensing. 2 Laboratory Based Synthesis of Diamond and Nitrogen-Containing Diamond 2.1 High Pressure High Temperature (HPHT) Methods. Nature was the inspiration for the HPHT method, by which diamond growth was demonstrated by Swedish company ASEA in 1953 (though not reported at that time) and subsequently by US company General Electric in 1955. 14 , 15 Most present-day HPHT synthesis exploits the temperature-gradient growth (TGG) method developed later in that decade. 16 However, it took many further years before the design and control of HPHT reactors yielded diamonds of

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“…Biomedical applications require nontoxic photoresistant optical markers absorbing and emitting in the NIR biological window of biotissues. Several impurities in diamond, such as SiV and NE8 defect centres with spectrally narrow zero-phonon lines (even at room temperature), satisfy these demands [1,2].…”

Section: Introductionmentioning

confidence: 99%

Room Temperature Optical Thermometry Based on the Luminescence of the SiV Defects in Diamond

et al. 2019

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SiV-containing microcrystals of diamond are synthesised by using high-pressure high-temperature treatment of a mixture of pertinent organic-inorganic precursors. Photoluminescence of SiV defects were investigated with the aim to use the microcrystals for optical temperature sensing in near infrared at room temperature based on temperaturedependent shift of the 740 nm zero-phonon line of SiV photoemission.

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Spectroscopic study of NE8 defect in synthetic diamond for optical thermometry

Cited by 22 publications

References 23 publications

Toward Performance and Applications of Large Area Optical Thermometry Based on the Luminescence of Germanium‐Vacancy Defects in Diamond Nanocrystals

Toward Performance and Applications of Large Area Optical Thermometry Based on the Luminescence of Germanium‐Vacancy Defects in Diamond Nanocrystals

Nitrogen in Diamond

Room Temperature Optical Thermometry Based on the Luminescence of the SiV Defects in Diamond

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