Control of NV, SiV and GeV centers formation in single crystal diamond needles
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2022-04-04 |
| Journal | Diamond and Related Materials |
| Authors | Sergei Malykhin, Yuliya Mindarava, Š . Š . ŠŃŠ¼Š°Š³ŠøŠ»Š¾Š², Fedor Jelezko, A. N. Obraztsov |
| Institutions | Lomonosov Moscow State University, University of Eastern Finland |
| Citations | 26 |
Abstract
Section titled āAbstractāSingle-crystal diamond needles in the form of micrometer-scale sharp pyramids were produced using a combination of chemical vapor deposition and thermal oxidation processes. These diamond needles with atomic-sized fluorescent defects (color centers) attract great interest for practical applications as a platform for creation of optical quantum sensing probes and optical quantum communication elements. Particular color centers localization providing suitable luminescence characteristics is required for these applications. Here we report about formation of nitrogen-vacancy (NV), silicon-vacancy (SiV) and germanium-vacancy (GeV) centers in the single-crystal diamond needles during direct current discharge plasma enhanced chemical vapor deposition (PE CVD). Luminescent characteristics of the needles were observed by confocal photoluminescence mapping. Analysis of experimental results allows us proposing possible mechanisms of impurities introduction into the crystal lattice during needles growth. These mechanisms include gas decomposition and etching of substrate material during CVD. The proposed mechanisms were approved by realization of CVD process protocols resulting in controllable formation of NV, SiV and GeV centers in single-crystal diamond needles including formation of thin NV- and SiV- enriched layers by tuning deposition process parameters. The proposed experimental approaches in combination with revealed mechanisms for introduction of favorable impurities make single-crystal diamond needles promising candidates for scanning quantum sensing, quantum communication and hyperpolarization experiments.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 2014 - Nitrogen-vacancy centers in diamond: nanoscale sensors for physics and biology [Crossref]
- 2018 - Diamond as a platform for integrated quantum photonics
- 2013 - The nitrogen-vacancy colour centre in diamond [Crossref]
- 2017 - Nanoscale sensing using point defects in single-crystal diamond: recent progress on nitrogen vacancy center-based sensors [Crossref]
- 2011 - Electric-field sensing using single diamond spins [Crossref]
- 2008 - High-sensitivity diamond magnetometer with nanoscale resolution [Crossref]
- 2017 - Optical contactless measurement of electric field-induced tensile stress in diamond nanoscale needles [Crossref]
- 2018 - All-optical nanoscale thermometry with silicon-vacancy centers in diamond [Crossref]
- 2018 - Germanium-vacancy color center in diamond as a temperature sensor [Crossref]
- 2014 - Nanoscale detection of a single fundamental charge in ambient conditions using the NV-center in diamond [Crossref]