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Contract number
14.W03.31.0028 , 075-15-2021-623
Time span of the project
Invited researcher

As of 30.01.2020

Number of staff members
scientific publications
Objects of intellectual property
General information

Name of the project: Diamond-based quantum optical sensors

Strategy for Scientific and Technological Development Priority Level: а

Goals and objectives

Research directions: Functional materials based on optical centers in diamonds and oxides for quantum technologies and diagnostics of biological objects

Project objective: Creation and investigation of materials that are promising for development of new nano-scale sensors, elements of quantum computers and lithographic technologies based on quantum optics qualities of coloring centers in diamonds

The practical value of the study

  • We have investigated coloring centers that are promising for fluorescence thermometry of biological objects.
  • Our researchers have studied correlations of of spectrums of photoluminescence of several coloring centers in diamonds: SiV-center, GeV-center and SnV-center that can be excited in the biological transparency window.
  • It has been determined that location and width of the zero-phonon line of photoluminescence of the SnV-center change linearly in a wide range of temperatures which allow for utilization of such parameters as an independent check of temperature measurements.
  • In the setting of growing high frequency monocrystals of CVD diamonds with low levels of nitrogen admixture in the reactor working at the 2.45 GHz frequency we have produced and tested a method for doping diamonds with silicon.
  • We have determined optimal parameters of operation of a reactor for producing CVD diamonds with low content of defects and different content of SiV-centers. In this setting diamonds grow at the rate of 10 μm/hour.
  • Our Laboratory has produced layers of a CVD diamonds with different content of SiV-centers depending on conditions of synthesis. For the best samples the width of the diamond peak in the Raman scattering range is 1.56–1.70 cm-1 which corresponds to diamonds with high crystalline perfection while width of the zero-phonon line of SiV-centers is 5 nm.
  • We have implemented the effect of coherent trapping of populations in ensembles of NV-centers in diamonds in the context of anticrossing of levels of the ground state when a strong magnetic field is applied.
  • We have proposed and tested a method for controlling angles between axes of a diamond with NV-centers and an external magnetic field. The method is based on cross-relaxation resonances.

Organizational and structural changes: The Laboratory has become the basis of the Quantum and Spin Technologies Center of the Kazan Research Center of the Russian Academy of Sciences


  • Texas A&M University (USA): joint research and publications
  • King Abdulaziz City for Science and Technology (Saudi Arabia): joint research, experiments and publications
  • Moscow State University (Russia): joint research and academic events

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Alkahtani M.H, Cojocaru I., Liu X., Herzig T., Meijer J., Küpper J., Lühmann T., Akimov A.V., Hemmer P.R.
Tin-vacancy in Diamonds for Luminescent Thermometry. Applied Physics Letters 112(24): 241902 (2018).
Lopatin O.N., Nikolaev A.G., Valeev V.F., Nuzhdin V.I., Khaibullin R.I.
Crystal-Chemical Features of Diamonds Implanted with Helium Ions. Crystallography Reports 63(3): 327–330 (2018).
Alkahtani M.H., Alghannam F., Jiang L., Rampersaud A.A., Brick R., Gomes C.L., Scully M.O., Hemmer P.R.
Fluorescent Nanodiamonds for Luminescent Thermometry in the Biological Transparency Window. Optics letters 43(14): 3317–3320 (2018).
Alkahtani M.H, Alghannam F., Jiang L., Almethen A., Rampersaud A.A., Brick R., Gomes C.L., Scully M.O., Hemmer P.R.
Fluorescent Nanodiamonds: Past, Present, and Future. Nanophotonics 7(8): 1423–1453 (2018).
Lapaev D.V., Nikiforov V.G., Lobkov V.S., Knyazev A.A., Galyametdinov Y.G.
A Photostable Vitrified Film Based on a Terbium (iii) β-diketonate Complex as a Sensing Element for Reusable Luminescent Thermometers. Journal of Materials Chemistry C 6(35): 9475–9481 (2018).
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