naa a22 4500 510817270 CHVBK 20180411083513.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11468-012-9463-0 doi (NATIONALLICENCE)springer-10.1007/s11468-012-9463-0 The Focusing and Talbot Effect of Periodic Arrays of Metallic Nanoapertures in High-Index Medium [Elektronische Daten] [Yiting Yu, Delphine Chassaing, Torsten Scherer, Benjamin Landenberger, Hans Zappe] Three finite-sized two-dimensional (2D) periodic arrays of metallic nanoapertures with the shape of nanowave, nanohole, and nanodot have been developed. Using water as an output medium, although the operating wavelengths are larger than the array period, both the focusing and far-field plasmon Talbot effect are experimentally observed, showing a good agreement with the 2D finite-difference time-domain (FDTD) simulation results. The focusing performance in both cases, with the output medium of air and of water, is compared. A detailed investigation of the plasmon Talbot revivals reveals that they are composed of subwavelength hotspots with the size of ∼0.5λ distributed in the same array period as the original device. Three-dimensional FDTD simulations prove that the existence of surface plasmons (SPs) exhibits an enhanced optical transmission at some SP resonant wavelengths dependent on the output medium. Additionally, it is demonstrated that the Talbot revivals provide a high-resolution mean to distinguish the slight geometric nonuniformity in periodic nanostructures. Springer Science+Business Media New York, 2012 Surface plasmons nationallicence Metallic nanoapertures nationallicence Focusing nationallicence Talbot effect nationallicence Yu Yiting Key Laboratory of Micro/Nano Systems for Aerospace (Ministry of Education), Northwestern Polytechnical University, 710072, Xi'an, People's Republic of China aut Chassaing Delphine Institute of Nanotechnology (INT), Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany aut Scherer Torsten Institute of Nanotechnology (INT), Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany aut Landenberger Benjamin Laboratory for Bio- and Nano-Photonics, Department of Microsystems Engineering-IMTEK, University of Freiburg, 79110, Freiburg, Germany aut Zappe Hans Laboratory for Micro-optics, Department of Microsystems Engineering-IMTEK, University of Freiburg, 79110, Freiburg, Germany aut Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 723-732 1557-1955 8:2<723 2013 8 11468 https://doi.org/10.1007/s11468-012-9463-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-012-9463-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yu Yiting Key Laboratory of Micro/Nano Systems for Aerospace (Ministry of Education), Northwestern Polytechnical University, 710072, Xi'an, People's Republic of China aut NATIONALLICENCE 700 1- Chassaing Delphine Institute of Nanotechnology (INT), Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany aut NATIONALLICENCE 700 1- Scherer Torsten Institute of Nanotechnology (INT), Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany aut NATIONALLICENCE 700 1- Landenberger Benjamin Laboratory for Bio- and Nano-Photonics, Department of Microsystems Engineering-IMTEK, University of Freiburg, 79110, Freiburg, Germany aut NATIONALLICENCE 700 1- Zappe Hans Laboratory for Micro-optics, Department of Microsystems Engineering-IMTEK, University of Freiburg, 79110, Freiburg, Germany aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 723-732 1557-1955 8:2<723 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer