[en] High performance Brillouin microscopy (BM) has been used to characterize the spatial distribution of piezoelectrically induced acoustic fields excited at microwave frequencies in a LiNbO3 single crystal. It is demonstrated that under suitable conditions BM is able to detect microwave-induced bulk as well as surface acoustic waves. Brillouin spectroscopy is able to probe sound wave intensities of induced phonons, which are as small as those of thermal phonons.
Disciplines :
Physique
Identifiants :
UNILU:UL-ARTICLE-2009-029
Auteur, co-auteur :
Vincent, B.; Laboratoire Européen de Recherche Universitaire: Saarland-Lorraine, Universität des Saarlandes, D-66041 Saarbrücken, Germany
KRÜGER, Jan-Kristian ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Elmazria, Omar; Laboratoire de Physique des Milieux Ionisés et Applications, CNRS-UMR 7040, Université H. Poincaré, Nancy I, F-54506, France
Bouvot, L.
Mainka, J.
SANCTUARY, Roland ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Rouxel, D.
Alnot, Patrick
Langue du document :
Anglais
Titre :
Imaging of microwave-induced acoustic fields in LiNbO3 by high-performance Brillouin microscopy
