HYBRID WAVES GUIDED BY ULTRATHIN FILMS

The existence conditions and waveguiding properties of new hybrid. TE- dominant waveguide modes of properly tailored waveguides consisting on ultrathin films cladded by a positive birefringent crystal are analyz ed. The results show that the existence conditions of such waves stron gly depend on the waveguide parameters, Accordingly, the related guide d-to-radiated wave transition holds promise for switching applications requiring a strong sensitive dependence on the material refractive in dex values.