Journal of the European Optical Society - Rapid publications, Vol 10 (2015)
Guided-mode triggered switching between TE orders of a metal-based grating-waveguide
Abstract
An undulated metal-based dielectric slab waveguide is shown to exhibit a high contrast broadband switching effect in the angular spectrum between the 0^th order Fresnel reflection and the propagating -1^st reflected diffraction orders. The switching trigger is the synchronous collinear coupling of an incident TE plane wave to the close-to-cutoff forward- and backward-propagating fundamental TE_0 mode of the waveguide via the +1^st and -2^nd order of the periodic undulation.
© The Authors. All rights reserved. [DOI: 10.2971/jeos.2015.15040]
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