Properties of surface plasmon–polaritons excited in two and three-layered structures containing topological insulators with axion effect were investigated. The plasmon polarization rotation was revealed and the conditions for the polarization effects enhancement were found.
$^1$Department of photonics and microwave physics, Faculty of Physics, Lomonosov Moscow State University Moscow 119991, Russia
$^2$Russian Quantum Center, 143025, Russia, Moscow, Skolkovo, Novaya str. 100A
$^3$Prokhorov General Physics Institute RAS, Russia, 119991, Moscow, Vavilova, 38