Thermal radiation transmission and reflection properties of ceramic 3D photonic crystals

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Autor/in:
Erscheinungsjahr:
2012
Medientyp:
Text
Schlagworte:
  • Photonic crystals
  • Photonic band gap
  • Inverse opals
  • Photonic Crystals
  • Photonics
  • Waveguides
  • Photonic crystals
  • Photonic band gap
  • Inverse opals
  • Photonic Crystals
  • Photonics
  • Waveguides
Beschreibung:
  • The infrared (IR) transmission and reflection properties of the ceramic thermal barrier coatings have great implications on the overall performance of a component operated at high temperatures, where a significant amount of heat from external IR radiation will propagate through the coating toward the underlying substrate. A hightemperature photonic structure can be used to limit this radiation transport while operating at temperatures above 1000 °C. Herein, we present the concept of a broadband and angle-insensitive IR reflector, based on 3D photonic crystals (PhCs) that consists of a ceramic material with high thermal stability and low thermal conductivity. We numerically demonstrate that the multistack ceramic 3D PhCs can provide > 80% of bi-hemispherical reflectance in the wavelength region of 1-5 μm. © 2012 Optical Society of America.
Lizenz:
  • info:eu-repo/semantics/closedAccess
Quellsystem:
Forschungsinformationssystem der UHH
Interne Metadaten
Quelldatensatz
oai:www.edit.fis.uni-hamburg.de:publications/ba236ea6-86ef-4921-98cb-4465f9ee13ff