Terahertz Surface Plasmon Polaritons on Freestanding Multi-Walled Carbon Nanotube Aerogel Sheets

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dc.contributor.ISNI0000 0003 5232 4253 (Baughman, RH)
dc.contributor.authorNguyen, T. D.en_US
dc.contributor.authorLiu, S.en_US
dc.contributor.authorLima, Marcio Diasen_US
dc.contributor.authorFang, Shaolien_US
dc.contributor.authorBaughman, Ray H.en_US
dc.contributor.authorNahata, A.en_US
dc.contributor.authorVardeny, Z. V.en_US
dc.contributor.utdAuthorLima, Marcio Diasen_US
dc.contributor.utdAuthorFang, Shaolien_US
dc.contributor.utdAuthorBaughman, Ray H.en_US
dc.date.accessioned2014-02-27T19:45:46Z
dc.date.available2014-02-27T19:45:46Z
dc.date.created2012-05-08en_US
dc.date.issued2012-05-08en_US
dc.description.abstractWe demonstrate that multi-walled carbon nanotubes (MWCNTs) are capable of supporting surface plasmon-polaritons (SPPs) at terahertz (THz) frequencies. To achieve this, we fabricated sub-100 μm-thick freestanding and highly oriented multi-walled carbon nanotube (MWCNT) aerogel sheets. Utilizing terahertz time-domain spectroscopy, we measured the complex index of refraction of the sheets for two orthogonal nanotube orientations. We found that the MWCNT sheets exhibit highly anisotropic THz polarization behavior. Based on the extracted dielectric properties of the medium, which show that it exhibits metallic behavior in the THz spectral range, we investigated the existence and propagation of SPPs by studying the resonantly enhanced transmission through periodic MWCNT hole arrays. We found that carbon nanotubes support SPP excitations that propagate along the tubes, but highly suppress these surface waves in the direction perpendicular to the nanotubes.en_US
dc.description.sponsorshipThis work was supported by the NSF MRSEC program at the University of Utah under grant # DMR 1121252.en_US
dc.identifier.bibliographicCitationNguyen, T. D., S. Liu, M. D. Lima, S. Fang, et al. 2012. "Terahertz surface plasmon polaritons on freestanding multi-walled carbon nanotube aerogel sheets." Optical Materials Express 2(6): 782-788.en_US
dc.identifier.issn2159-3930en_US
dc.identifier.issue6en_US
dc.identifier.startpage782en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/3104
dc.identifier.volume2en_US
dc.relation.urihttp://dx.doi.org/10.1364/OME.2.000782
dc.rights©2012 Optical Society of Americaen_US
dc.sourceOptical Materials Express
dc.subjectNanostructured materialsen_US
dc.subjectPolaritonsen_US
dc.subjectPlasmons (Physics)en_US
dc.titleTerahertz Surface Plasmon Polaritons on Freestanding Multi-Walled Carbon Nanotube Aerogel Sheetsen_US
dc.typeTexten_US
dc.type.genreArticleen_US

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