Optimal architecture for diamond-based wide-field thermal imaging
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2020-02-01 |
| Journal | AIP Advances |
| Authors | Rana Tanos, Waseem Akhtar, Serge Monneret, Felipe FƔvaro de Oliveira, Gediminas Seniutinas |
| Institutions | Centrale Marseille, Centre National de la Recherche Scientifique |
| Citations | 12 |
Abstract
Section titled āAbstractāNitrogen-vacancy centers in diamonds possess an electronic spin resonance that strongly depends on temperature, which makes them efficient temperature sensors with sensitivity down to a few mK/Hz. However, the high thermal conductivity of the host diamond may strongly damp any temperature variations, leading to invasive measurements when probing local temperature distributions. In the view of determining possible and optimal configurations for diamond-based wide-field thermal imaging, here, we investigate both experimentally and numerically the effect of the presence of diamonds on microscale temperature distributions. Three geometrical configurations are studied: a bulk diamond substrate, a thin diamond layer bonded on quartz, and diamond nanoparticles dispersed on quartz. We show that the use of bulk diamond substrates for thermal imaging is highly invasive in the sense that it prevents any substantial temperature increase. Conversely, thin diamond layers partly solve this issue and could provide a possible alternative for microscale thermal imaging. Dispersions of diamond nanoparticles throughout the sample appear as the most relevant approach as they do not affect the temperature distribution, although NV centers in nanodiamonds yield lower temperature sensitivities than bulk diamonds.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
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