Diamond contact-less micrometric temperature sensors

Diamond contact-less micrometric temperature sensors

An alternative approach for high-speed temperature measurement with micrometer-scale spatial resolution based on the luminescence of Ni-doped diamond micro-particles is described. Under picosecond pulsed laser excitation, these particles exhibit intense green luminescence; the lifetime of this lumin...

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Bibliographic Details
Published in:Applied physics letters Vol. 106; no. 24
Main Authors: Homeyer, E., Pailhès, S., Debord, R., Jary, V., Dujardin, C., Ledoux, G.
Format: Journal Article
Language:English
Published: Melville American Institute of Physics 15-06-2015
Subjects:
Applied physics
Condensed Matter
Diamonds
Luminescence
Nickel
Physics
Pulsed lasers
Rangefinding
Spatial resolution
Temperature measurement
Temperature sensors
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Description
Summary:An alternative approach for high-speed temperature measurement with micrometer-scale spatial resolution based on the luminescence of Ni-doped diamond micro-particles is described. Under picosecond pulsed laser excitation, these particles exhibit intense green luminescence; the lifetime of this luminescence decreases by several orders of magnitude upon heating from 120 K up to 900 K. The intensity of the luminescence remains constant over this temperature range. Real-time measurements were performed with repetition rates of up to 100 Hz with a temperature resolution of better than 1 °C.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4921177