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ITO-based metamaterials for polarization-independent wide-angle mid-infrared thermal radiation
- Source :
- Case Studies in Thermal Engineering, Vol 37, Iss , Pp 102278- (2022)
- Publication Year :
- 2022
- Publisher :
- Elsevier, 2022.
-
Abstract
- The realization of mid-infrared thermal radiation based on metamaterials insensitive to angle and polarization plays an important role in various thermal photonic applications. However, the challenges include the following: most previously designed thermal emitters usually contain metal components with unsatisfied physicochemical stability, accompanied with complex manufacturing technology. The present study proposes a mid-infrared thermal emitter at 3–6 μm wavelength range based on Fibonacci quasi-periodic structure, and a flat one-dimensional structure based on Fibonacci geometry resorting to ITO is designed. The proposed thermal emitter is, theoretically and experimentally, proven to possess good angular and polarization-independent selective thermal emission performance in a relatively wide infrared wavelength range. Furthermore, the good optical and high-temperature thermal stability of the designed thermal emitter is verified in the present experimental research. The thermal emitters proposed have advantages in polarization-independence without scale restraint and low cost but with wide vision. In summary, the present study provides a new tactics for obtaining non-metal spectral selective thermal emitters in a relatively wide wavelength range and thermal photonic applications under harsh conditions.
Details
- Language :
- English
- ISSN :
- 2214157X
- Volume :
- 37
- Issue :
- 102278-
- Database :
- Directory of Open Access Journals
- Journal :
- Case Studies in Thermal Engineering
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.9ce87bbe187f48d9bab15c4f35c99625
- Document Type :
- article
- Full Text :
- https://doi.org/10.1016/j.csite.2022.102278