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(a) Map of the modulus of the electric field from a finite elements numerical simulation: an incident Gaussian beam impinges the PC of dielectric cylinders from the bottom and suffers two total internal reflections at the PC boundaries. (b) Experimental data showing the map of intensity with one total internal reflection at an interface parallel to the direction in a prism of the same PC of dielectric cylinders, on which the beam enters from below. (c) (movie) Snapshot of the experimental recorded electric field showing the field phase in this total internal reflection. (d) Interpretation of the reflection by means of the isofrequency lines.
Numerical results of the beam shift as a function of the exterior refractive index for a PC with complete cylinders (red dashed line), in comparison with the beam shift produced by a dielectric (blue solid line) with an effective refractive index similar to the effective index of the PC.
Numerical results of the variation in the beam shift vs the cut parameter (solid squares) (see inset: truncation in the last cylinder row and representation of the cut parameter ).
Band diagram for the PC supercell with an evanescent surface mode for a cut . The work frequency (solid thick red line) is shown.
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