Publication: Localized thermal emission from topological interfaces
Program
KU-Authors
KU Authors
Co-Authors
Ergöktaş, M. Said
Keçebaş, Ali
Despotelis, Konstantinos
Soleymani, Sina
Bakan, Gökhan
Principi, Alessandro
Rotter, Stefan
Özdemir, Şahin K.
Kocabaş, Coşkun
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Abstract
The control of thermal radiation by shaping its spatial and spectral emission characteristics plays a key role in many areas of science and engineering. Conventional approaches to tailoring thermal emission using metamaterials are hampered both by the limited spatial resolution of the required subwavelength material structures and by the materials' strong absorption in the infrared. In this work, we demonstrate an approach based on the concept of topology. By changing a single parameter of a multilayer coating, we were able to control the reflection topology of a surface, with the critical point of zero reflection being topologically protected. The boundaries between subcritical and supercritical spatial domains host topological interface states with near-unity thermal emissivity. These topological concepts enable unconventional manipulation of thermal light for applications in thermal management and thermal camouflage.
Source
Publisher
American Association for the Advancement of Science
Subject
Metamaterial, Electromagnetic radiation, Optics
Citation
Has Part
Source
Science
Book Series Title
Edition
DOI
10.1126/science.ado0534