Integrated NV Center-Based Temperature Sensor for Internal Thermal Monitoring in Optical Waveguides
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2025-07-02 |
| Journal | Sensors |
| Authors | Yifan Zhao, ShiāYou Ding, Shuo Wang, Yiming Hu, Hongliang Liu |
| Institutions | Ocean University of China, Wuhan Ship Development & Design Institute |
| Citations | 1 |
| Analysis | Full AI Review Included |
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View Original Abstract
Color centers in solids, such as nitrogen-vacancy (NV) centers in diamonds, have gained significant attention in recent years due to their exceptional properties for quantum sensing. In this work, we demonstrate an NV center-based temperature sensor integrated into an optical waveguide to enable internal temperature sensing. A surface-cladding optical waveguide was fabricated in a diamond wafer containing NV centers using femtosecond laser direct writing. By analyzing the resonant peaks of optically detected magnetic resonance (ODMR) spectra, we established a precise correlation between temperature changes induced by the pump laser and shifts in the ODMR peak positions. This approach enabled temperature monitoring with a sensitivity of 1.1 mK/Hz. These results highlight the significant potential of color centers in solids for non-contact, micro-scale temperature monitoring.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
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