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Title: Ultra-broadband near-field antenna for terahertz plasmonic applications

A new type of ultra-broadband near-field antenna for terahertz frequencies is proposed. This antenna is a short-period planar metal array. It is theoretically shown that irradiation of the short-period array antenna by a plane homogeneous terahertz waves excite a highly inhomogeneous near electric field near the metal array. In this case, the amplitude of the excited inhomogeneous near electric field is almost independent of frequency in the entire terahertz frequency range. The excitation of plasma oscillations in a two-dimensional electron system using the antenna under study is numerically simulated in the resonant and non-resonant plasmonic response modes. This type of antenna can be used for developing ultra-broadband plasmonic detectors of terahertz radiation.
Authors:
;  [1] ;  [2]
  1. Russian Academy of Sciences, Saratov Branch of the Kotel’nikov Institute of Radio Engineering and Electronics (Russian Federation)
  2. Université Montpellier 2 and CNRS, Laboratoire Charles Coulomb, UMR 5221 (France)
Publication Date:
OSTI Identifier:
22470128
Resource Type:
Journal Article
Resource Relation:
Journal Name: Semiconductors; Journal Volume: 49; Journal Issue: 1; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AMPLITUDES; ANTENNAS; ELECTRIC FIELDS; ELECTRONS; EXCITATION; IRRADIATION; METALS; PLASMA WAVES; PLASMONS; THZ RANGE; TWO-DIMENSIONAL SYSTEMS