Spectroscopic and thermal study of Er-doped oxysulfide crystal powders

Joaquín Fernández; Rolindes Balda; Macarena Barredo-Zuriarrain; Odile Merdrignac; Noha Hakmeh; Sara García-Revilla; M. Angeles Arriandiaga

doi:10.1117/12.2076963

10 March 2015 Spectroscopic and thermal study of Er-doped oxysulfide crystal powders

Joaquín Fernández, Rolindes Balda, Macarena Barredo-Zuriarrain, Odile Merdrignac, Noha Hakmeh, Sara García-Revilla, M. Angeles Arriandiaga

Author Affiliations +

Proceedings Volume 9380, Laser Refrigeration of Solids VIII; 93800A (2015) https://doi.org/10.1117/12.2076963
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

The present investigation explores the upconversion properties of Er³⁺- doped La₂O₂S crystal powder as well as its potentiality for anti-Stokes cooling. A detailed study of the wavelength and pumping power dependence of the spectroscopic properties and of the temperature field of samples with various erbium concentrations is presented. The analysis of both spectroscopic and thermal measurements shows that after a transient heating induced by the background absorption, cooling can be attained by means of anti-Stokes processes.

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Joaquín Fernández, Rolindes Balda, Macarena Barredo-Zuriarrain, Odile Merdrignac, Noha Hakmeh, Sara García-Revilla, and M. Angeles Arriandiaga "Spectroscopic and thermal study of Er-doped oxysulfide crystal powders", Proc. SPIE 9380, Laser Refrigeration of Solids VIII, 93800A (10 March 2015); https://doi.org/10.1117/12.2076963

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