Browsing by Subject "Epsilon-near-zero graded-index converging lenses"

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Terahertz epsilon-near-zero graded-index lens

Torres Landívar, Víctor ; Pacheco-Peña, Víctor ; Rodríguez Ulibarri, Pablo ; Navarro Cía, Miguel ; Beruete Díaz, Miguel ; Sorolla Ayza, Mario ; Engheta, Nader (Optical Society of America, 2013) Artículo / Artikulua

An epsilon-near-zero graded-index converging lens with planar faces is proposed and analyzed. Each perfectly-electric conducting (PEC) waveguide comprising the lens operates slightly above its cut-off frequency and has ...