Reinhart, Franz-KarlKrieger, Matthias2005-03-162005-03-16199410.5075/epfl-thesis-1238https://infoscience.epfl.ch/handle/20.500.14299/209723enNear infrared Brillouin scattering in epitaxial AlxGa1-xAs layers and AlAs-GaAs-superlatticesthesis::doctoral thesis