This paper describes the results of an experimental observation at room temperature effect NonFaraday rotation of the polarization vector of signals femtosecond stimulated photon echo excited in a three-layer semiconductor film ZnO / Si (P) / Si (B).
$^1$ Volga State University of Technology Russia, 424000, Yoshkar-Ola, pl. Lenina. 3.
$^2$ Saint Petersburg National Research University of Information Technologies, Mechanics and Optics. Russia, 197101, St. Petersburg, Kronverksky pr., 49