Epsilon-near-zero thin-film metamaterials for wideband near-perfect light absorption

Epsilon-near-zero thin-film metamaterials for wideband near-perfect light absorption

Absorptive metamaterials made of epsilon-near-zero indium tin oxide and silicon dioxide films are designed and fabricated for wideband perfect light absorption near the epsilon-near-zero wavelength. By increasing the number of bilayers, we achieve over 90% absorption in a spectral bandwidth of 0.95...

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Veröffentlicht in:Optical materials express 2020-10, Vol.10 (10), p.2439
Hauptverfasser: Smith, Evan M., Chen, Jinnan, Hendrickson, Joshua R., Cleary, Justin W., Dass, Chandriker, Reed, Amber N., Vangala, Shivashankar, Guo, Junpeng
Format: Artikel
Sprache:eng
Schlagworte:
Absorptivity
Broadband
Electromagnetic absorption
Indium tin oxides
Metamaterials
Silicon dioxide
Thin films
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Zusammenfassung:Absorptive metamaterials made of epsilon-near-zero indium tin oxide and silicon dioxide films are designed and fabricated for wideband perfect light absorption near the epsilon-near-zero wavelength. By increasing the number of bilayers, we achieve over 90% absorption in a spectral bandwidth of 0.95 microns.
ISSN:2159-3930
2159-3930
DOI:10.1364/OME.404169