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Resonant polarization conversion and beam shift in planar multilayered structures
Author(s) -
Kitajima Hiroe,
Hano Kazunori
Publication year - 1977
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs012i004p00565
Subject(s) - polarization (electrochemistry) , optics , planar , gaussian beam , radial polarization , anisotropy , beam (structure) , light beam , materials science , oblique case , physics , laser beam quality , laser beams , chemistry , laser , computer graphics (images) , linguistics , philosophy , computer science
For planar multilayered structures composed of thin‐film waveguides with anisotropic or gyrotropic media, resonant polarization conversion and anomalous lateral beam shift are considered. If an oblique gaussian beam is incident under the optimum condition, polarization of the field incident on the top region is almost completely converted to cross polarization; under the other condition, instead of the polarization conversion, the corresponding system produces a large beam shift—nearly twice the ordinary beam shift of a prism coupling structure. The interpretation of the physical mechanism for these phenomena is presented with numerical examples. New schemes for modulation and optical switching applications are proposed.