Work

Emissivity measurements on noble metals: validation of a free-electron description including the anomalous skin effect

Year: 2024

Type: article

Abstract: The optical properties of noble metals (Cu, Ag, and Au) have been studied in the mid-infrared using emissivity measurements at 473 K. Their optical responses can be described using classical free-electron expressions in the Mott–Zener approximation with an additional term to account for the extra emission due to the anomalous skin effect, with no free parameters. Clear differences between the specular and diffuse surface scattering regimes can be observed. These results constitute metrological-quality validations of the thermal radiative properties of these important metals. Graphical abstract

Source: The European Physical Journal Plus

DOI: 10.1140/epjp/s13360-024-05819-3

Authors: Iñigo González de Arrieta, Telmo Echániz, Albert Adibekyan, Christian Monte, Jörg Hollandt, Gabriel A. López

Institutions: University of the Basque Country, Physikalisch-Technische Bundesanstalt

Language: English

Topic: Thermal Radiation and Cooling Technologies

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,790

Funders: Eusko Jaurlaritza, Euskal Herriko Unibertsitatea