naa a22 4500 510815871 CHVBK 20180411083507.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s11468-012-9439-0 doi (NATIONALLICENCE)springer-10.1007/s11468-012-9439-0 Terahertz Dipole Nanoantenna Arrays: Resonance Characteristics [Elektronische Daten] [Luca Razzari, Andrea Toma, Matteo Clerici, Mostafa Shalaby, Gobind Das, Carlo Liberale, Manohar Chirumamilla, Remo Zaccaria, Francesco De Angelis, Marco Peccianti, Roberto Morandotti, Enzo Di Fabrizio] Resonant dipole nanoantennas promise to considerably improve the capabilities of terahertz spectroscopy, offering the possibility of increasing its sensitivity through local field enhancement, while in principle allowing unprecedented spatial resolutions, well below the diffraction limit. Here, we investigate the resonance properties of ordered arrays of terahertz dipole nanoantennas, both experimentally and through numerical simulations. We demonstrate the tunability of this type of structures, in a range (∼1-2THz) that is particularly interesting and accessible by means of standard zinc telluride sources. We additionally study the near-field resonance properties of the arrays, finding that the resonance shift observed between near-field and far-field spectra is predominantly ascribable to ohmic damping. The Author(s), 2012 Terahertz spectroscopy nationallicence Nanostructure fabrication nationallicence Plasmonics nationallicence Nanophotonics nationallicence Razzari Luca Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy aut Toma Andrea Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy aut Clerici Matteo INRS-EMT, 1650 Boulevard Lionel Boulet, J3X 1S2, Varennes, Québec, Canada aut Shalaby Mostafa INRS-EMT, 1650 Boulevard Lionel Boulet, J3X 1S2, Varennes, Québec, Canada aut Das Gobind Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy aut Liberale Carlo Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy aut Chirumamilla Manohar Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy aut Zaccaria Remo Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy aut De Angelis Francesco Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy aut Peccianti Marco INRS-EMT, 1650 Boulevard Lionel Boulet, J3X 1S2, Varennes, Québec, Canada aut Morandotti Roberto INRS-EMT, 1650 Boulevard Lionel Boulet, J3X 1S2, Varennes, Québec, Canada aut Di Fabrizio Enzo Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy aut Plasmonics Springer US; http://www.springer-ny.com 8/1(2013-03-01), 133-138 1557-1955 8:1<133 2013 8 11468 https://doi.org/10.1007/s11468-012-9439-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-012-9439-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Razzari Luca Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy aut NATIONALLICENCE 700 1- Toma Andrea Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy aut NATIONALLICENCE 700 1- Clerici Matteo INRS-EMT, 1650 Boulevard Lionel Boulet, J3X 1S2, Varennes, Québec, Canada aut NATIONALLICENCE 700 1- Shalaby Mostafa INRS-EMT, 1650 Boulevard Lionel Boulet, J3X 1S2, Varennes, Québec, Canada aut NATIONALLICENCE 700 1- Das Gobind Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy aut NATIONALLICENCE 700 1- Liberale Carlo Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy aut NATIONALLICENCE 700 1- Chirumamilla Manohar Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy aut NATIONALLICENCE 700 1- Zaccaria Remo Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy aut NATIONALLICENCE 700 1- De Angelis Francesco Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy aut NATIONALLICENCE 700 1- Peccianti Marco INRS-EMT, 1650 Boulevard Lionel Boulet, J3X 1S2, Varennes, Québec, Canada aut NATIONALLICENCE 700 1- Morandotti Roberto INRS-EMT, 1650 Boulevard Lionel Boulet, J3X 1S2, Varennes, Québec, Canada aut NATIONALLICENCE 700 1- Di Fabrizio Enzo Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/1(2013-03-01), 133-138 1557-1955 8:1<133 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer