2008/04/22 by Andrea Alù, Andrea Alu, Mário G. Silveirinha +2 · 145 citations
Chemistry · Engineering · Materials Science · Mathematics · Physics and Astronomy · #Advanced Antenna and Metasurface Technologies #Chemistry #Computer science #Geometry #Line (geometry) #Mathematics #Metamaterial #Metamaterials and Metasurfaces Applications #Microwave Engineering and Waveguides #Physics #Polarization (electrochemistry) #Quantum mechanics #Quantum tunnelling #Statistical physics #Telecommunications #Transmission (telecommunications) #Transmission line #Waveguide #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physreve.78.016604
published in Physical Review E 78(1), 016604 (American Physical Society) · 35 pages, 9 figures
arxiv created 2008/04/22 · openalex publication_date 2008/07/23 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Following our recent interest in metamaterial-based devices supporting resonant tunneling, energy squeezing, and supercoupling through narrow waveguide channels and bends, here we analyze the fundamental physical mechanisms behind this phenomenon using a transmission-line model. These theoretical findings extend our theory, allowing us to take fully into account frequency dispersion and losses and revealing the substantial differences between this unique tunneling phenomenon and higher-frequency Fabry-Perot resonances. Moreover, they represent the foundations for other possibilities to realize tunneling through arbitrary waveguide bends, both in E and H planes of polarization, waveguide connections, and sharp abruptions and to obtain analogous effects with geometries arguably simpler to realize.