Plasmonic terahertz antennas with high-aspect ratio metal gratings A.E. Yachmenev, D.V. Lavrukhin, I.A. Glinskiy, R.A. Khabibullin, R.R. Galiev, A.Yu. Pavlov, Yu.G. Goncharov, I.E. Spektor, M. Ryzhii, T. Otsuji et al. (2 more) EPJ Web Conf., 195 (2018) 02009 Published online: 23 November 2018 DOI: 10.1051/epjconf/201819502009