1974/03/01 by John N. Polky, J. N. Polky, Gordon L. Mitchell
Engineering · Materials Science · #Semiconductor Lasers and Optical Devices #Photonic and Optical Devices #Optical Coatings and Gratings
paper · doi:10.1364/josa.64.000274
Attenuation characteristics of a metal-clad four-layer thin-film optical waveguide are presented. Guided-wave losses are calculated as functions of isolation-layer thickness, type of metal, and isolation-layer refractive index. The TM polarized waves were found to exhibit an absorption peak as a function of isolation thickness. This peak is interpreted as resonant coupling to a lossy surface-plasma wave.