Goos-Hanchen shift at the reflection of light from the complex structures composed of superconducting and dielectric layers

TL;DR

This paper theoretically investigates the Goos-Hanchen shift in light reflected from layered structures with superconducting and dielectric materials, showing how temperature and film positioning influence lateral shift values.

Contribution

It introduces a theoretical analysis of the Goos-Hanchen effect in complex superconducting-dielectric layered structures, highlighting the effects of anisotropy and temperature control.

Findings

Lateral shift is strongly affected by the superconducting film's position.

Temperature variation enables control of lateral shifts near pseudo-Brewster angles.

Significant lateral shifts occur at grazing incidence for TM-polarized light.

Abstract

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.