Upconversion emission of erbium-doped lanthanum oxysulfide powders for temperature sensing

Rolindes Balda; Noha Hakmeh; Odile Merdrignac-Conanec; M. Angeles Arriandiaga; Joaquin Fernandez

doi:10.1117/12.2252319

16 February 2017 Upconversion emission of erbium-doped lanthanum oxysulfide powders for temperature sensing

Rolindes Balda, Noha Hakmeh, Odile Merdrignac-Conanec, M. Angeles Arriandiaga, Joaquin Fernandez

Proceedings Volume 10100, Optical Components and Materials XIV; 101000R (2017) https://doi.org/10.1117/12.2252319
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

In this work we report a detailed spectroscopic study of the near-infrared to visible upconversion luminescence in Erdoped lanthanum oxysulfide crystal powders after excitation of level ⁴I_9/2. The analysis of the decay curves of the upconversion emission indicates that energy transfer upconversion is the main mechanism responsible for the green (⁴S_3/2) and red (⁴F_9/2) upconversion luminescence. The temperature dependence of the green upconverted emission from the two thermally coupled ²H_11/2 and ⁴S_3/2 levels has been analyzed in the 230 K- 300 K temperature range in order to check its availability as a temperature sensor.

Citation Download Citation

Rolindes Balda, Noha Hakmeh, Odile Merdrignac-Conanec, M. Angeles Arriandiaga, and Joaquin Fernandez "Upconversion emission of erbium-doped lanthanum oxysulfide powders for temperature sensing", Proc. SPIE 10100, Optical Components and Materials XIV, 101000R (16 February 2017); https://doi.org/10.1117/12.2252319

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