Metafoils with extreme mechano-optical properties for solar radiation isolation
2022 Sixteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)(2022)
Abstract
Metal-polymer interfaces are used widely in satellite missions as they show extreme thermal isolation and elevated interface strength. In space, robust interfaces between nanomaterials are essential as thermal gradients and strain may result in device failure. Here we show flexible metafoils with ultrastable plasmon resonances allowing transmission of visible radiation while reflect the unwanted infrared responsible for device heating. Electromagnetic and nanomechanical simulations confirm our experimental findings showing extreme robustness with strains up to
$\sim\mathbf{20}\%$
, equivalent to thermal expansion in temperatures of
$> \mathbf{10}^{\mathbf{4}}\ \mathbf{K}$
. Such space solar isolators can be used along with photovoltaic panels allowing optimum interplay with visible light for efficient charging. Resilient ultrathin metasurfaces are highly desirable for mechano-optical applications in harsh environments ensuring small footprint and lightweight devices.
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Key words
ultrastable plasmon resonances,visible radiation,device heating,nanomechanical simulations,extreme robustness,thermal expansion,space solar isolators,mechano-optical applications,lightweight devices,extreme mechano-optical properties,solar radiation isolation,metal-polymer interfaces,satellite missions,extreme thermal isolation,interface strength,robust interfaces,nanomaterials,thermal gradients,strain,device failure,flexible metafoils,temperature 104.0 K
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