Optimization of the Sensitivity of a Temperature Sensor Based on the Germanium‐Vacancy Color Center (GeV) in Diamond
Temperature sensors based on the GeV color center in diamond are gaining considerable attention in both scientific and industrial fields. For widespread industrial adoption, however, these sensors need a design that is as simple and cost‐effective as possible. The original sensor design relies on measuring the spectral characteristics of the zero‐phonon line. Recently, a modified approach is introduced, which involves splitting the GeV emission with a dichroic mirror and determining temperature based on the ratio of the two resulting signals. In this analysis, a detailed comparison of both methods is provided. At room temperature, the two methods show comparable performance, with slight variations depending on component quality. However, at temperatures around 300 °C, the new method's performance is estimated to be nearly twice that of the original, provided optimal filter parameters are used. Additionally, the sensitivity of the new method remains roughly consistent with its performance at room temperature.
Authors
- Valery A. Davydov (ORCID: https://orcid.org/0000-0002-8702-0340)
- Vladimir V. Soshenko (ORCID: https://orcid.org/0000-0001-5440-7082)
- A. Yu. Chernyavskiy (ORCID: https://orcid.org/0000-0001-8768-5855)
- Andrey N. Smolyaninov (ORCID: https://orcid.org/0000-0002-4898-9415)
- А. В. Акимов (ORCID: https://orcid.org/0000-0002-4167-5085)
- S. Ya. Kilin (ORCID: https://orcid.org/0000-0003-3972-3946)
- V. Agafonov (ORCID: https://orcid.org/0000-0001-5770-1252)
- Vadim N. Sorokin (ORCID: https://orcid.org/0000-0002-5171-9029)
- Stepan V. Bolshedvorskii (ORCID: https://orcid.org/0000-0002-8934-770X)
- I. S. Cojocaru (ORCID: https://orcid.org/0000-0001-5448-9049)
- L. F. Kulikova (ORCID: https://orcid.org/0000-0002-9070-0590)
Institutions
- Université de Tours (FR)
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences (RU)
- Centre National de la Recherche Scientifique (FR)
- Moscow Institute of Physics and Technology (RU)
- B.I. Stepanov Institute of Physics (BY)
- Institute for High Pressure Physics (RU)
- Russian Quantum Center (RU)
- Institut National des Sciences Appliquées Centre Val de Loire (FR)
- National Research Nuclear University MEPhI (RU)
Publication Details
- Journal
- physica status solidi (RRL) - Rapid Research Letters
- Published
- 2025-03-06
- DOI
- https://doi.org/10.1002/pssr.202400315
- Primary Topic
- Diamond and Carbon-based Materials Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Ministry of Science and Higher Education of the Russian Federation