Localised Thermal Emission from Topological Interfaces
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866916284499755008 |
|---|---|
| author | Ergoktas, M. Said Kecebas, Ali Despotelis, Konstantinos Soleymani, Sina Bakan, Gokhan Kocabas, Askin Principi, Alessandro Rotter, Stefan Ozdemir, Sahin K. Kocabas, Coskun |
| author_facet | Ergoktas, M. Said Kecebas, Ali Despotelis, Konstantinos Soleymani, Sina Bakan, Gokhan Kocabas, Askin Principi, Alessandro Rotter, Stefan Ozdemir, Sahin K. Kocabas, Coskun |
| contents | 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 tailor thermal emission using metamaterials are severely hampered both by the limited spatial resolution of the required sub-wavelength material structures and by the materials' strong absorption in the infrared. Here, we demonstrate a promising new approach based on the concept of topology. By changing a single parameter of a multilayer coating, we control the reflection topology of a surface, with the critical point of zero reflection being topologically protected. As a result, the boundaries between sub-critical and super-critical spatial domains host topological interface states with near-unity thermal emissivity. Our experimental demonstration of this effect shows that topological concepts enable unconventional manipulation of thermal light with promising applications for thermal management, energy harvesting and thermal camouflage. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_08316 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Localised Thermal Emission from Topological Interfaces Ergoktas, M. Said Kecebas, Ali Despotelis, Konstantinos Soleymani, Sina Bakan, Gokhan Kocabas, Askin Principi, Alessandro Rotter, Stefan Ozdemir, Sahin K. Kocabas, Coskun Applied Physics Materials Science Optics 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 tailor thermal emission using metamaterials are severely hampered both by the limited spatial resolution of the required sub-wavelength material structures and by the materials' strong absorption in the infrared. Here, we demonstrate a promising new approach based on the concept of topology. By changing a single parameter of a multilayer coating, we control the reflection topology of a surface, with the critical point of zero reflection being topologically protected. As a result, the boundaries between sub-critical and super-critical spatial domains host topological interface states with near-unity thermal emissivity. Our experimental demonstration of this effect shows that topological concepts enable unconventional manipulation of thermal light with promising applications for thermal management, energy harvesting and thermal camouflage. |
| title | Localised Thermal Emission from Topological Interfaces |
| topic | Applied Physics Materials Science Optics |
| url | https://arxiv.org/abs/2401.08316 |