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Title: Metamaterial Surfaces
Originating Office: IAS
Speaker: Grbic, Anthony
Issue Date: 4-Oct-2012
Event Date: 4-Oct-2012
Group/Series/Folder: Record Group 8.15 - Institute for Advanced Study
Series 3 - Audio-visual Materials
Location: 8.15:3 EF
Notes: Croucher Advanced Study Institute on New Materials and New Concepts for Controlling Light and Waves. Talk no.10
Host: HKUST Institute for Advanced Study.
Sponsor: The Croucher Foundation.
Abstract: The talk will begin with a brief overview of electromagnetic metamaterials. These are subwavelength-structured materials that exhibit tailored electromagnetic properties. They can be designed to possess a wide range of properties, even those not found in natural materials. For this reason, metamaterials have received widespread attention in recent years and have been the subject of an intense research effort in the engineering and physics communities. This presentation will describe directions we are pursuing in this emerging field of research.
The talk will primarily focus on metamaterial surfaces (metasurfaces). Metamaterial surfaces are textured at a subwavelength scale, in the same way that bulk metamaterials exhibit subwavelength granularity. They can be described macroscopically in terms of effective impedances/admittances just as bulk metamaterials are described in terms of effective material parameters: permittivity and permeability. The presentation will cover non-periodic metasurfaces for near-field electromagnetic manipulation, planar metamaterials with tensor impedance properties for the design of microwave devices and antennas based on transformation electromagnetics, and contoured subwavelengthtextured surfaces for electrically-small antenna development. Throughout the talk, metamaterial-based devices will be shown and application areas identified for the proposed structures.
Duration: 31 min.
Appears in Series:8.15:3 - Audio-visual Materials
Videos for Public -- Distinguished Lectures