WAVE-GUIDE RAMAN-SPECTROSCOPY OF POLYMERS AND POLYMER LAMINATES

The Raman waveguide spectra of a series of polymer laminates obtained using a simple optical waveguide coupling device are reported. The opt ical properties of these polymer films were obtained by measuring the waveguide coupling angles and the resulting electric field calculation s were shown to predict (semiquantitatively) the observed spectra as a function of waveguide mode number. A discussion of the practical diff iculties encountered with available polymer samples emphasizes why suc h measurements are not yet to be regarded as 'routine'. No unequivocal evidence could be found for interfacial effects at the polymer/polyme r interface.