TITLE

Advantage of anti-Stokes Raman scattering for high-temperature measurements

AUTHOR(S)
Fujimori, Hirotaka; Kakihana, Masato; Ioku, Koji; Goto, Seishi; Yoshimura, Masahiro
PUB. DATE
August 2001
SOURCE
Applied Physics Letters;8/13/2001, Vol. 79 Issue 7
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present the results of experiments that assess the viability of anti-Stokes scattering to investigate in situ materials at high temperatures. Both anti-Stokes and Stokes Raman measurements have been performed at various high temperatures using hafnia as a test material. As compared with Stokes Raman spectra, anti-Stokes spectra were observed with lower thermal emission backgrounds in accordance with Planck’s equation. The intensity ratio of anti-Stokes to Stokes scattering approaches 1 as the temperature increases at high temperatures satisfying the Boltzmann distribution law. These results clearly demonstrate the advantage and feasibility of anti-Stokes Raman scattering for the elimination of the thermal emission in comparison with Stokes scattering. © 2001 American Institute of Physics.
ACCESSION #
4972042

 

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