Observation of standing light wave by using fluorescence from a polymer thin film and diffuse reflection from a glass surface: Revisiting Wiener's experiment

摘要

In 1892 Drude and Nernst reported the first observation of a standing light wave by using a fluorescent thin film, which is a real-time version of Wiener's first experiment on standing light wave. We reproduce the experiment by Drude and Nernst with improved efficiency using modem laser technology and a highly fluorescent pi-conjugated polymer. We also used a glass plate scratched slightly on one surface to visualize the same phenomenon using diffuse reflection instead of fluorescence. This method has the advantage of being a wavelength-independent observation compared to the fluorescence method.