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Omnidirectional, polarization-insensitive and broadband thin absorber in the terahertz regime
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.ORCID iD: 0000-0002-3401-1125
2010 (English)In: Journal of the Optical Society of America. B, Optical physics, ISSN 0740-3224, E-ISSN 1520-8540, Vol. 27, no 3, 498-504 p.Article in journal (Refereed) Published
Abstract [en]

A nearly omnidirectional THz absorber for both transverse electric (TE) and transverse magnetic (TM) polarizations is proposed. Through the excitation of the magnetic polariton in a metal-dielectric layer, the incident light is perfectly absorbed in a thin thickness that is about 25 times smaller than the resonance wavelength. By simply stacking several such structural layers with different geometrical dimensions, the bandwidth of this strong absorption can be effectively enhanced due to the hybridization of magnetic polaritons in different layers.

Place, publisher, year, edition, pages
2010. Vol. 27, no 3, 498-504 p.
Keyword [en]
photonic crystal, absorption, metamaterials, fabrication, light
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-19286DOI: 10.1364/JOSAB.27.000498ISI: 000275238100020Scopus ID: 2-s2.0-77949300958OAI: oai:DiVA.org:kth-19286DiVA: diva2:337333
Funder
Swedish Research Council
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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He, Sailing

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