Polarized thermal emission by thin metal wires
Giuseppe Bimonte, Luca Cappellin, Giovanni Carugno, Giuseppe Ruoso,, Daniela Saadeh
TL;DR
This paper presents measurements of the linear polarization of thermal radiation from thin tungsten wires, confirming theoretical predictions and enhancing understanding of polarized thermal emission from metallic nanostructures.
Contribution
It provides new experimental data on polarized thermal emission from tungsten wires and validates theoretical models based on optical property fits.
Findings
Good agreement between measurements and theory
Polarization depends on wire thickness
Supports Drude model applicability
Abstract
We report new measurements of the linear polarization of thermal radiation emitted by incandescent thin tungsten wires, with thicknesses ranging from five to hundred microns. Our data show very good agreement with theoretical predictions, based on Drude-type fits to measured optical properties of tungsten.
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