Artículos de revistas
Thermal lens and interferometric method for glass transition and thermo physical properties measurements in Nd(2)O(3) doped sodium zincborate glass
Fecha
2008Registro en:
OPTICS EXPRESS, v.16, n.26, p.21248-21255, 2008
1094-4087
10.1364/OE.16.021248
Autor
ASTRATH, N. G. C.
STEIMACHER, A.
ROHLING, J. H.
MEDINA, A. N.
BENTO, A. C.
BAESSO, M. L.
JACINTO, C.
CATUNDA, Tomaz
LIMA, S. M.
KARTHIKEYAN, B.
Institución
Resumen
In this work the time resolved thermal lens method is combined with interferometric technique, the thermal relaxation calorimetry, photoluminescence and lifetime measurements to determine the thermo physical properties of Nd(2)O(3) doped sodium zincborate glass as a function of temperature up to the glass transition region. Thermal diffusivity, thermal conductivity, fluorescence quantum efficiency, linear thermal expansion coefficient and thermal coefficient of electronic polarizability were determined. In conclusion, the results showed the ability of thermal lens and interferometric methods to perform measurements very close to the phase transition region. These techniques provide absolute values for the measured physical quantities and are advantageous when low scan rates are required. (c) 2008 Optical Society of America