Analysis of infrared images of spatial beats between two discrete modes in a single waveguide is shown to provide a useful consistency check on the thicknesses and refractive indices of the dielectric layers.
© 1992 Optical Society of America
R. G. Kaufman, G. Hulse, D. J. Vezzetti, M. Munowitz, K. Stair, and T. Bird, "Observation and analysis of spatial beats in a multimode dielectric optical waveguide," Appl. Opt. 31, 4920-4922 (1992)