| Issue |
EPJ Web Conf.
Volume 309, 2024
EOS Annual Meeting (EOSAM 2024)
|
|
|---|---|---|
| Article Number | 13003 | |
| Number of page(s) | 2 | |
| Section | Focused Sessions (FS) 3- Passive Radiative Cooling | |
| DOI | https://doi.org/10.1051/epjconf/202430913003 | |
| Published online | 31 October 2024 | |
https://doi.org/10.1051/epjconf/202430913003
Directional spectral emissivity characterization and modeling of laser-patterned steel surfaces
1 Physics Department, Faculty of Science and Technology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
2 Institut für Fertigungstechnik, Technische Universität Dresden, George-Bähr-Str. 3c, 01069 Dresden, Germany
3 Fraunhofer-Institut für Werkstoff und Strahltechnik (IWS), Winterbergstr 28, 01277 Dresden, Germany
4 Electricity and Electronics Department, Faculty of Science and Technology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
* e-mail: inigo.gonzalezdearrieta@ehu.eus
Published online: 31 October 2024
We present preliminary results on the fabrication of patterned surfaces by Direct Laser Interference Patterning and the characterization and theoretical interpretation of their infrared emissivities. The upgraded experimental method is capable of studying the full directional emission of samples under a controlled atmosphere at high temperatures. The effects of surface patterning can be quantitatively studied and modeled using a numerical method based on rigorous coupled-wave analysis (RCWA), a technique usually employed for periodic surfaces. The results show that laser interference patterning is capable of modifying the infrared emission of metallic materials, and that these changes can be accurately measured and numerically reproduced.
© The Authors, published by EDP Sciences, 2024
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