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Regensburg 2004 – scientific programme

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CPP: Chemische Physik und Polymerphysik

CPP 15: POSTER: Polymers and Biomaterials

CPP 15.36: Poster

Tuesday, March 9, 2004, 17:00–19:00, B

Brillouin-microscopy, a versatile technique to study the mechanical properties of polymers — •Ravindrakumar BACTAVATCHALOU1,2, Roland SANCTUARY1,3, Jan Kristian KRÜGER1,2, Uli MÜLLER1,2, and Wolfgang MANGLKAMMER1,21Laboratoire Européen de Recherche Universitaire Saarland-Lorraine (LERUSL) — 2Universität des Saarlandes, Experimentalphysik, Postfach 151150, D-66041 Saarbrücken, Germany — 3Université du Luxembourg, Avenue de la Faïencerie, L-1511, Luxembourg

Brillouin spectroscopy (BS) is a versatile method to study the elastic properties of bulk and film-like samples. In contrast to the well established micro-Raman technique such a spatial resolving technique was not yet available for BS. We propose here a new kind of Brillouin microscopy (BM) without using a standard optical microscope, instead we use a home made optical magnifier in combination with a spatial filtering and scanning set-up. We will show that this new Brillouin technique is especially valuable for the investigation of polymers. Recently, a spatial resolution about 1 µ m was demonstrated (J. Phys. D: Appl. Phys. 36 (2003) 2738-2742). In order to prove the capability of BM we present and discuss the mechanical properties of interphases in ’substrate-1/adhesive/substrate-2’ sandwiches.

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