TITLE

Eliminating the broadening by finite aperture in Brillouin spectroscopy

AUTHOR(S)
Vialla, R.; Rufflé, B.; Guimbretière, G.; Vacher, R.
PUB. DATE
November 2011
SOURCE
Review of Scientific Instruments;Nov2011, Vol. 82 Issue 11, p113110
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present a new optical arrangement which allows to avoid the broadening by finite aperture in Brillouin spectroscopy. In this system, all the rays scattered at the same angle by the whole scattering volume are collected on a single pixel of the area detector. This allows to use large collection angles, increasing the luminosity without lowering the accuracy of the frequency-shift and linewidth measurements. Several results of experimental checks are provided, showing the efficiency of the device.
ACCESSION #
67537992

 

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