We have measured the vibrational Raman spectrum of a 1.2-µm-thick polystyrene film by using this film as an optical waveguide in a waveguide-stimulated Raman gain experiment. A gain factor of 1.3% was measured for the strong benzene mode at 1002 cm-1. This value is in reasonable agreement with theoretical predictions.
© 1996 Optical Society of America
Johannes S. Kanger, Teunis W. Tukker, Cees Otto, and Jan Greve, "Stimulated Raman gain scattering in planar dielectric waveguides," Opt. Lett. 21, 671-673 (1996)