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Journal Article
Quantum sensing with spin defects: principles, progress, and prospects for use cases
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- Authors
- Kihwan Kim, Jong Sung Moon, Dongkwon Lee, Jin Hee Lee, Yuhan Lee, Chanhu Park, Jugyeong Chung, Donghun Lee, Je-Hyung Kim
- Issue Date
- 2025-11
- Citation
- Advanced Photonics, v.7, no.6, pp.1-42
- ISSN
- 2577-5421
- Publisher
- SPIE
- Language
- English
- Type
- Journal Article
- Abstract
- Quantum sensing aims to detect signals with unparalleled sensitivity, potentially surpassing classical limitations. Solid-state spin defects, particularly nitrogen-vacancy centers in diamond, have emerged as promising platforms due to their long coherence time, optical addressability, high field sensitivity, and spatial and spectral resolution, making them ideal for sensing and imaging applications. Their compact size and robust performance under room temperature and ambient conditions further enhance their suitability for real-world applications. We provide an overview of quantum sensing principles and explore efforts to improve sensor functionality, including advanced sensing protocols, spatial imaging techniques, and integration with optical systems to enhance detection efficiency. We also highlight recent progress in the applications of these sensors across various use cases, including biomedical diagnostics, semiconductor device inspection, and industrial and military applications.
- KSP Keywords
- Compact size, Detection efficiency, Field sensitivity, Imaging techniques, Military applications, Optical System, Real-world applications, Recent progress, Robust performance, Room temperature, Use cases