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Article

Temperature Sensing with Nd3+ Doped YAS Laser Microresonators

1
Departamento de Física, Universidad de La Laguna, Apdo. 456, E-38200 San Cristóbal de La Laguna, Spain
2
Instituto Universitario de Materiales y Nanotecnología (IMN), Universidad de La Laguna, Apdo. 456, E-38200 San Cristóbal de La Laguna, Spain
3
Instituto Universitario de Estudios Avanzados (IUdEA), Universidad de La Laguna, Apdo. 456, E-38200 San Cristóbal de La Laguna, Spain
4
Department of Glass and Glass Ceramics, D. Mendeleev University of Chemical Technology, Miusskaya Sq., 9, 125047 Moscow, Russia
*
Author to whom correspondence should be addressed.
Academic Editor: Giulio Nicola Cerullo
Appl. Sci. 2021, 11(3), 1117; https://doi.org/10.3390/app11031117
Received: 29 December 2020 / Revised: 21 January 2021 / Accepted: 22 January 2021 / Published: 26 January 2021
(This article belongs to the Special Issue Laser Spectroscopy)
Yttria–alumina–silica (YAS) glass microspheres doped with Nd3+ ions were excited with a 532 nm continuous laser in order to study the dependency of the wavelength of the whispering gallery mode (WGM) peaks on the temperature of the sample. This was possible due to a previous calibration of the 808 nm and 890 nm emission bands of the Nd:YAS glass sample for different temperatures using the fluorescence intensity ratio (FIR) technique. A maximum sensitivity of 15 × 10−6 K−1 and a temperature resolution limit of 0.2 K were obtained for the microsphere sensor. Moreover, laser emission at 1064 nm was observed by continuous pumping at 532 nm, and a power threshold of 100 mW was determined. Upconversion emissions of Nd3+ were also studied by exciting the sample at 808 nm. View Full-Text
Keywords: transparent microspheres; neodymium; emission; whispering gallery modes; fluorescence intensity ratio; temperature sensor; laser; upconversion transparent microspheres; neodymium; emission; whispering gallery modes; fluorescence intensity ratio; temperature sensor; laser; upconversion
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MDPI and ACS Style

Walo-Martín, D.; Paz-Buclatin, F.; Ríos, S.; Martín, I.R.; Martin, L.L.; Ródenas, A.; Sigaev, V.N.; Savinkov, V.I.; Shakhgildyan, G.Y. Temperature Sensing with Nd3+ Doped YAS Laser Microresonators. Appl. Sci. 2021, 11, 1117. https://doi.org/10.3390/app11031117

AMA Style

Walo-Martín D, Paz-Buclatin F, Ríos S, Martín IR, Martin LL, Ródenas A, Sigaev VN, Savinkov VI, Shakhgildyan GY. Temperature Sensing with Nd3+ Doped YAS Laser Microresonators. Applied Sciences. 2021; 11(3):1117. https://doi.org/10.3390/app11031117

Chicago/Turabian Style

Walo-Martín, Daniel, Franzette Paz-Buclatin, Susana Ríos, Inocencio R. Martín, Leopoldo L. Martin, Airán Ródenas, Vladimir N. Sigaev, Vitaliy I. Savinkov, and Georgiy Y. Shakhgildyan. 2021. "Temperature Sensing with Nd3+ Doped YAS Laser Microresonators" Applied Sciences 11, no. 3: 1117. https://doi.org/10.3390/app11031117

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