10 February 1981 Guided Waves On Corrugated Surfaces And Their Link With Grating Anomalies And Coupling Phenomenon
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Abstract
The existence of a comnlex pole of the reflection coefficient of a metallic plane, or of the zero order efficiency of a metallic grating, implies the existence of a homogeneous solution of Maxwell equations. Such a solution, which exists in the absence of any incident wave, is a guided wave on the plane or corrugated surface and is responsible for several strange phenomena such as grating anomalies, total absorption of light by a grating, or the coupling of a laser beam into an optical waveguide by means of a photoresist grating. For TM polarization, the guided wave is usually due to plasmon resonance in the metal. But similar phenomena can be observed for TE polarization provided one superimposes a dielectric overcoating with convenient thickness on top of the metallic grating.
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Michel Neviere, Michel Neviere, "Guided Waves On Corrugated Surfaces And Their Link With Grating Anomalies And Coupling Phenomenon", Proc. SPIE 0240, Periodic Structures, Gratings, Moire Patterns, and Diffraction Phenomena I, (10 February 1981); doi: 10.1117/12.965648; https://doi.org/10.1117/12.965648
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