Omnidirectional, polarization-insensitive and broadband thin absorber in the terahertz regime
2010 (English)In: Journal of the Optical Society of America. B, Optical physics, ISSN 0740-3224, Vol. 27, no 3, 498-504 p.Article in journal (Refereed) Published
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.
photonic crystal, absorption, metamaterials, fabrication, light
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-19286DOI: 10.1364/JOSAB.27.000498ISI: 000275238100020ScopusID: 2-s2.0-77949300958OAI: oai:DiVA.org:kth-19286DiVA: diva2:337333
FunderSwedish Research Council
QC 201005252010-08-052010-08-052013-11-19Bibliographically approved