Yu, N.; Wang, Q.J.; Kats, M.A.; Fan, J.A.; Capasso, F.; Khanna, S.P.; Li, L.; Davies, A.G.; Linfield, E.H.: 'Terahertz plasmonics', Electronics Letters, 2010, 46, (26), p. 52-57, DOI: 10.1049/el.2010.2131
IET Digital Library, https://digital-library.theiet.org/;jsessionid=1ja9a0a72pdfl.x-iet-live-01content/journals/10.1049/el.2010.2131