title: Resonant-grating reflection extended to wide-band, large-aperture beams by waveguide-mode coalescence.
abstract: The resonant reflection of a free-space beam from a slab waveguide grating is rendered high bandwidth and angularly robust by using a bimodal high index waveguide. A deep double-sided corrugation gives rise to the coalescence of the resonant reflection peaks resulting in a top-hat reflection spectrum. A low-cost waveguide technology based on solar cell amorphous silicon is demonstrated in the near infrared in a polarizer application.
authors: Université de Lyon, Laboratoire Hubert Curien, UMR CNRS 5516, 18 rue Benoit Lauras, F-42000 Saint-Etienne, France. yves.jourlin@univ-st-etienne.fr
authors: Y
authors: Y
authors: Jourlin
authors: S
authors: S
authors: Tonchev
authors: A V
authors: AV
authors: Tishchenko
authors: F
authors: F
authors: Lacour
authors: O
authors: O
authors: Parriaux