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dc.contributor.authorGao, Zhenen
dc.contributor.authorGao, Feien
dc.contributor.authorXu, Hongyien
dc.contributor.authorZhang, Youmingen
dc.contributor.authorZhang, Baileen
dc.identifier.citationGao, Z., Gao, F., Xu, H., Zhang, Y., & Zhang, B. (2016). Localized spoof surface plasmons in textured open metal surfaces. Optics Letters, 41(10), 2181-2184.en
dc.description.abstractWe experimentally demonstrate that textured open metal surfaces, i.e., the ultrathin fan-shaped metallic strips, are able to support spoof localized surface plasmons (spoof-LSPs) in the microwave frequencies. Unlike conventional spoof-LSPs supported on textured closed metal surfaces, which originate from the interference of clockwise and counterclockwise propagating surface modes, spoof-LSPs on textured open metal surfaces arise from the Fabry–Perot-like resonances due to the terminations of the open surfaces. We show that both the number of modes and the resonance frequencies of spoof-LSPs on textured open metal surfaces can be engineered through tuning the grating numbers (or total length) of the structured fan-shaped metallic strip. This enables the tuning of the spoof-plasmonic resonator by simply changing its length, rather than the complete geometry, simplifying the design to just one degree of freedom. Experimental evidence of the spoof-LSP Fabry–Perot resonators in the microwave regimes is presented with near-field response spectra and mode profiles imaged directly.en
dc.description.sponsorshipMOE (Min. of Education, S’pore)en
dc.relation.ispartofseriesOptics Lettersen
dc.rights© 2016 Optical Society of America (OSA).en
dc.titleLocalized spoof surface plasmons in textured open metal surfacesen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
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