This article is cited in 3 papers

XVIII Symposium "Nanophysics and Nanoelectronics", Nizhni Novgorod, March 10-14, 2014

Ultra-broadband near-field antenna for terahertz plasmonic applications

O. V. Polishchuk^ab, V. V. Popov^ab, W. Knap<sup>c

a</sup> Saratov Branch, Kotel'nikov Institute of Radio-Engineering and Electronics, Russian Academy of Sciences
^b Saratov State University
^c Laboratoire Charles Coulomb, UMR 5221, Université Montpellier 2 and CNRS, Montpellier, France

Abstract: 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.

Received: 23.05.2014
Accepted: 15.06.2014

 English version: Semiconductors, 2015, 49:1, 104–108

Bibliographic databases:

•