|Title:||Metamaterials to Bridge Propagating Waves with Surface Waves and Control Electromagnetic Waves|
|Group/Series/Folder:||Record Group 8.15 - Institute for Advanced Study|
Series 3 - Audio-visual Materials
|Notes:||Croucher Advanced Study Institute on New Materials and New Concepts for Controlling Light and Waves. Talk no.11|
Host: HKUST Institute for Advanced Study.
Sponsor: The Croucher Foundation.
Abstract: Controlling electromagnetic (EM) waves freely is a dream for researchers. While manipulating propagating waves (PWs) or surface waves (SWs) has separately become possible using transformation optics, a bridge that can link PWs with SWs at will has not yet been found and is highly desired to make the full control over EM waves possible. Recently, graded structures were widely used to control EM waves, leading to trapped rainbows, lensing, beam bending and deflection, but none of them was focused on bridging a PW with an SW. Here, we demonstrate that a specific gradient-index meta-surface can convert a PW to an SW with theoretically 100% efficiency.
Duration: 35 min.
|Appears in Series:||8.15:3 - Audio-visual Materials|
Videos for Public -- Distinguished Lectures