Ref HAL: hal-00647002_v1
DOI: 10.1063/1.3663072
WoS: 000297941100011
Exporter : BibTex | endNote
6 Citations
Résumé:

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.