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Design of surface microrelief with selective radiative properties.

Author(s) : SENTENAC A., GREFFET J. J.

Type of article: Article

Summary

The radiative properties of a material can be modified by its surface microrelief. The authors show that if the typical length of the surface roughness is smaller than a fraction of wavelength, the roughness can be treated as a homogeneous equivalent layer. Using this model and standard optimization techniques, the authors have developed an algorithm for the design of surfaces of a given material with prescribed radiative properties. As examples, they propose a relief structure that decreases the reflectivity of glass between 8 and 12 micrometers and another one that increases the emissivity of platinum in the infrared.

Details

  • Original title: Design of surface microrelief with selective radiative properties.
  • Record ID : 1994-3427
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 37 - n. 4
  • Publication date: 1994/03

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