  The Goos-Hanchen effect of light reflected from sandwich (three-layered)
structures composed of a superconducting YBa2Cu3O7 film and two different
dielectric films is investigated theoretically. It has been shown that optical
anisotropy of YBa2Cu3O7 film, as well as its positions in the three-layer
specimen, strongly effects on the lateral shift values. We have shown that, for
all positions of the superconducting film in the three-layered structure,
variation of temperature makes possible to control the values of the lateral
shift of TE-polarized light at the incidence angles close to pseudo-Brewster
angles, whereas for TM-polarized light the lateral shift is only significant at
grazing incidence.

Optics