Metamaterial-based wideband electromagnetic wave absorber

Luigi La Spada, Lucio Vegni

Research output: Contribution to journalArticlepeer-review

80 Citations (Scopus)
107 Downloads (Pure)


In this paper, an analytical and numerical study of a new type of electromagnetic absorber, operating in the infrared and optical regime, is proposed. Absorption is obtained by exploiting Epsilon-Near-Zero materials. The structure electromagnetic properties are analytically described by using a new closed-form formula. In this way, it is possible to correlate the electromagnetic absorption properties of the structure with its geometrical characteristics. Good agreement between analytical and numerical results was achieved. Moreover, an absorption in a wide angle range (0°-80°), for different resonant frequencies (multi-band) with a large frequency bandwidth (wideband) for small structure thicknesses (d = λp/4) is obtained.
Original languageEnglish
Pages (from-to)5763-5772
Number of pages10
JournalOptics Express
Issue number6
Early online date7 Mar 2016
Publication statusPublished - 21 Mar 2016
Externally publishedYes

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© [2016 Optical Society of America]. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved


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