%0 Journal Article
%T Nanowire Terahertz detectors with a resonant four-leaf-clover-shaped antenna
%+ Laboratoire Charles Coulomb (L2C)
%+ Laboratorio di Nanoscienze
%A Viti, L
%A Coquillat, Dominique
%A Ercolani, D
%A Sorba, L
%A Knap, Wojciech
%A Vitiello, M. S.
%< avec comité de lecture
%Z L2C:14-024
%@ 1094-4087
%J Optics Express
%I Optical Society of America - OSA Publishing
%V 22
%N 8
%P 8996
%8 2014-04-07
%D 2014
%R 10.1364/OE.22.008996
%K Far infrared or terahertz
%K Nanolithography
%Z Physics [physics]/Physics [physics]/General Physics [physics.gen-ph]Journal articles
%X We report on the development of an innovative class of nanowire-based Terahertz (THz) detectors in which the metamaterial properties of an antenna have been imported in the detection scheme of an overdamped plasma-wave field-effect transistor making its response resonant to THz radiation. Responsivities of ~105 V/W at 0.3THz, with noise equivalent power levels ≈10−10W/√Hz, detectivities ~2*108cm√Hz/W and quantum efficiencies ~1.2*10−5 are reached at room-temperature. The resonant nature of the detection scheme provided by the four-leaf-clover-shaped geometry and the possibility to extend this technology to large multi-pixel arrays opens the path to demanding applications for ultra-sensitive metrology, spectroscopy and biomedicine.
%G English
%L hal-00981498
%U https://hal.science/hal-00981498
%~ CNRS
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021