Premium
High temperature experiments: a way to observe Raman scattering in luminescent samples
Author(s) -
Raffaëlly L.,
Champag B.
Publication year - 2007
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1757
Subject(s) - luminescence , raman scattering , raman spectroscopy , metastability , excitation , silicate , scattering , x ray raman scattering , wavelength , intensity (physics) , materials science , chemistry , molecular physics , analytical chemistry (journal) , atomic physics , optics , optoelectronics , physics , organic chemistry , chromatography , quantum mechanics
Two methods to decrease the luminescence of a sample and to observe the Raman scattering are described: the change of the wavelength of excitation or the change of the temperature of the sample. The evolution of the luminescence intensity with temperature is explained by the use of an energy model with a metastable state and radiationless processes whose activation energy can be calculated. This method is applied with success to a Roman silicate glass: the Raman scattering initially hidden by the luminescence is then observed. Copyright © 2007 John Wiley & Sons, Ltd.