Precise temperature sensing with nanoscale thermal sensors based on diamond NV centers
- Authors
- Choe, Sunuk; Yoon, Jungbae; Lee, Myeongwon; Oh, Jooeon; Lee, Dongkwon; Kang, Heeseong; Lee, Chul-Ho; Lee, Donghun
- Issue Date
- 9월-2018
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Temperature sensing; Diamond NV center; Nanodiamond
- Citation
- CURRENT APPLIED PHYSICS, v.18, no.9, pp.1066 - 1070
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- CURRENT APPLIED PHYSICS
- Volume
- 18
- Number
- 9
- Start Page
- 1066
- End Page
- 1070
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/73647
- DOI
- 10.1016/j.cap.2018.06.002
- ISSN
- 1567-1739
- Abstract
- Sensing temperature with high precision and high spatial resolution is challenging and requires novel temperature measurement techniques. Recently, an atomic-scale thermal sensor based on a defect center in diamond, i.e., a nitrogen-vacancy (NV) center, has been developed, and successfully demonstrated temperature sensing at the mK level and a few tens of nanometers. Here we discuss a temperature sensing mechanism based on the NV center in both experimental and theoretical aspects. At room temperature, we show temperature sensing over a wide-range of temperatures similar to 90 K with a precision of 0.2 K. We also map temperature gradients in a bridge-like device a few hundreds of micrometers long. In addition, we theoretically compare three sensing protocols and analyze temperature sensitivity to find optimal measurement time and NV concentration for the ensemble measurement.
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- Appears in
Collections - Graduate School > KU-KIST Graduate School of Converging Science and Technology > 1. Journal Articles
- College of Science > Department of Physics > 1. Journal Articles
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