Ultrathin 2 nm gold as impedance-matched absorber for infrared light

Long-term stability and broad spectral response are highly desired features of absorbers. Here, the authors report impedance matched absorbers based on 2 nm thick gold layer operating within the mid-infrared range from 2 to 20 μm, enabling stable long term absorptivity of 47(3) % which is mostly wav...

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Bibliographic Details
Main Authors: Niklas Luhmann, Dennis Høj, Markus Piller, Hendrik Kähler, Miao-Hsuan Chien, Robert G. West, Ulrik Lund Andersen, Silvan Schmid
Format: Article
Language:English
Published: Nature Publishing Group 2020-05-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-020-15762-3