The luminescent quantum efficiency of Cr³⁺ ions in co-doped crystals of LiNb0<syb>3</sub> : ZnO determined by simultaneous multiple-wavelength photoacoustic and luminescence experiments

dc.creatorTorchia, Gustavo Adrián
dc.creatorMuñoz, J. A.
dc.creatorCussó Pérez, Fernando
dc.creatorJaque Rechea, Francisco
dc.creatorTocho, Jorge Omar
dc.date2001
dc.date2015-03-25T14:32:31Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/44659
dc.descriptionIn this paper, the luminescent quantum efficiency of Cr³⁺ ions in co-doped crystals of LiNb0<sub>3</sub>: ZnO: Cr³⁺ is determined by using a method based on simultaneous multiple-wavelength measurement of photoacoustic and luminescence signal after pulsed laser excitation. The quantum efficiency found in this lattice was (10 ±4)% . This result was compared with the value found from the study of the lifetime in terms of the temperature of the luminescent levels involved. In this last case, two non-equivalent crystal sites were found for Cr³⁺ ions, and two fluorescence quantum yields were determined. After the estimation of the concentration of each site by electron paramagnetic resonance experiments, the averaged fluorescence quantum yield value was (9 ± 2)% in agreement with the previous result.
dc.descriptionFacultad de Ciencias Exactas
dc.descriptionCentro de Investigaciones Ópticas
dc.formatapplication/pdf
dc.languagees
dc.rightshttp://creativecommons.org/licenses/by/4.0/
dc.rightsCreative Commons Attribution 4.0 International (CC BY 4.0)
dc.subjectCiencias Exactas
dc.subjectluminescent quantum efficiency
dc.subjectmultiple-wavelength measurement
dc.subjectphotoacoustic signal
dc.subjectluminescence signal
dc.subjectÓptica y Fotónica
dc.subjectEspectroscopía
dc.titleThe luminescent quantum efficiency of Cr³⁺ ions in co-doped crystals of LiNb0<syb>3</sub> : ZnO determined by simultaneous multiple-wavelength photoacoustic and luminescence experiments
dc.typeArticulo
dc.typeArticulo


Este ítem pertenece a la siguiente institución