Title :
Frequency upconversion in Er3+ and Yb3+-doped zirconia and hafnia nanocrystals excited at 980 nm in the continuous-wave regime
Author :
L. de S. Menezes;L. A. Gomez;C. B. de Araujo;R. R. Goncalves;S. J. L. Ribeiro;Y. Messaddeq
Author_Institution :
Departamento de F?sica, Universidade Federal de Pernambuco, 50670-901 Recife-PE, Brazil
fDate :
6/1/2009 12:00:00 AM
Abstract :
In this work, a room temperature study of the infrared-to-green and infrared-to-red frequency upconversion (UC) processes for nanocrystals of ZrO2 and HfO2 synthesized via a sol-gel technique, singly doped with Er3+ and co-doped by Er3+/Yb3+ ions, with different concentrations was presented. The sample´s excitation was performed in the CW regime at 980 nm.
Keywords :
"Erbium","Laser excitation","Nanocrystals","Luminescence","Optical materials","Phonons","Cutoff frequency","Refractive index","Optical films","Pump lasers"
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Print_ISBN :
978-1-4244-4079-5
DOI :
10.1109/CLEOE-EQEC.2009.5196505
