Localized thermal emission from topological interfaces

• 成果类型: Article
• 署名作者: Ergoktas, M. Said; Kecebas, Ali; Despotelis, Konstantinos; Soleymani, Sina; Bakan, Gokhan; Kocabas, Askin; Principi, Alessandro; Rotter, Stefan; Ozdemir, Sahin K.; Kocabas, Coskun
• 署名单位: University of Manchester; University of Manchester; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; Koc University; University of Manchester; Technische Universitat Wien; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; University of Manchester; National Physical Laboratory - UK
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-11822
• DOI: 10.1126/science.ado0534
• 发表日期: 2024-06-07
• 页码: 1122-1126
• 关键词: light; absorber

摘要

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.