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Near-Infrared and Optical Beam Steering and Frequency Splitting in Air-Holes-in-Silicon Inverse Photonic Crystals

TitleNear-Infrared and Optical Beam Steering and Frequency Splitting in Air-Holes-in-Silicon Inverse Photonic Crystals
Publication TypeJournal Article
Year of Publication2017
AuthorsTasolamprou, AC, Koschny, T, Kafesaki, M, Soukoulis, CM
JournalAcs Photonics
Volume4
Pagination2782-2788
Date Published11
Type of ArticleArticle
ISBN Number2330-4022
Accession NumberWOS:000415786300020
Keywordsbeam steering, cavity, compact, design, dielectric media, directional, emission, frequency splitting, gratings, light, Materials Science, optics, photonic crystals, physics, subwavelength aperture, surface states, surface-modes, Technology - Other Topics, wave-guide, wavelength demultiplexer
Abstract

coupling to outgoing radiation. This coupling is achieved with the use of properly designed external corrugations. The structure adapts and matches modes that travel through the photonic crystal and the free space. Moreover it facilitates the steering of the outgoing waves, is found to generate well-defined, spatially and spectrally isolated beams, and may serve as a frequency splitting component designed for operation in the near-infrared regime and in particular the telecom optical wavelength band. The design complies with the state-of-the-art Si nanofabrication technology and can be directly scaled for operation in the optical regime.

DOI10.1021/acsphotonics.7b00739
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Metamaterials