Abstract

We have measured the absorption spectra of a monolayer of a cyanine dye and a substituted stilbene by the attenuation of an optical wave in a thin film sandwich of sputtered glass and polyvinyl alcohol. Fluorescense along the track was also seen. Sensitivity for absorption has been shown to be higher by almost four orders of magnitude over the conventional s and p spectroscopic methods¹ making accessible and feasible studies of molecular devices with thin films of organic molecules.

© 1976 Optical Society of America