ENHANCEMENT AND INHIBITION OF ELECTROMAGNETIC-RADIATION IN PLANE-LAYERED MEDIA .1. PLANE-WAVE SPECTRUM APPROACH

Using a Green's function technique and the plane-wave spectrum, we for mulate a classical theory for the calculation of radiative effects for a source in the presence of a planar interface or structure. The anal ysis focuses on understanding the roles of radiative and nonradiative energy transfer in the coupling processes and discusses the implicatio ns of modal-induced effects. This understanding is important for the d esign of a class of practical applications, including enhanced-sensiti vity optical waveguide sensors. (C) 1997 Optical Society of America.