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Nanosecond time‐resolved Raman spectroscopy for solving some Raman problems such as luminescence or thermal emission
Author(s) -
Fotso Gueutue E.S.,
Canizares A.,
Simon P.,
Raimboux N.,
Hennet L.,
Ammar M.R.
Publication year - 2018
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.5345
Subject(s) - raman spectroscopy , luminescence , raman scattering , nanosecond , materials science , analytical chemistry (journal) , coherent anti stokes raman spectroscopy , spectroscopy , laser , yttria stabilized zirconia , excitation wavelength , cubic zirconia , optoelectronics , optics , wavelength , chemistry , ceramic , physics , chromatography , quantum mechanics , composite material
Abstract Raman spectroscopy is experimentally widely available and relatively simple to perform at room temperature. Some difficulties nevertheless remain, as for instance separating some various contributions from the Raman spectrum, such as thermal emission for high temperature measurements or luminescence. Here, an optimized time‐resolved Raman spectroscopy system based on a gated detection and a nanosecond pulsed laser excitation (30 ns width, 532 nm wavelength) is described. The system allows contactless Raman measurements, at high temperatures, of some materials such as zirconia and yttria. An example of Raman spectra collected on yttria at very high temperature up to 2100 °C is provided. This optimized system may also be used to discriminate between Raman scattering and luminescence as demonstrated in zirconia material.