Whispering gallery mode resonators for precision temperature metrology applications
Year of publication
2021
Authors
Gugliandolo, Giovanni; Tabandeh, Shahin; Rosso, Lucia; Smorgon, Denis; Fernicola, Vito
Abstract
<p>In this work, the authors exploited the whispering gallery mode (WGM) resonator properties as a thermometer. The sensor is made of a cylindrical sapphire microwave resonator in the center of a gold-plated copper cavity. Two coaxial cables act as antennas and excite the WGM standing waves in the cylindrical sapphire at selected resonance frequencies in the microwave range. The system affords a high quality factor that enables temperature measurements with a resolution better than 15 µK and a measurement standard uncertainty of 1.2 mK, a value approximately three times better than that achieved in previous works. The developed sensor could be a promising alternative to platinum resistance thermometers, both as a transfer standard in industrial applications and as an interpolating instrument for the dissemination of the kelvin.</p>
Show moreOrganizations and authors
VTT Technical Research Centre of Finland Ltd
Tabandeh Shahin
Publication type
Publication format
Article
Parent publication type
Journal
Article type
Original article
Audience
ScientificPeer-reviewed
Peer-ReviewedMINEDU's publication type classification code
A1 Journal article (refereed), original researchPublication channel information
Open access
Open access in the publisher’s service
Yes
Open access of publication channel
Fully open publication channel
License of the publisher’s version
CC BY
Self-archived
No
Other information
Fields of science
Computer and information sciences; Physical sciences; Chemical sciences; Electronic, automation and communications engineering, electronics
Keywords
[object Object],[object Object],[object Object],[object Object],[object Object]
Language
English
International co-publication
Yes
Co-publication with a company
No
DOI
10.3390/s21082844
The publication is included in the Ministry of Education and Culture’s Publication data collection
Yes