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The issue of extracting guided modes from a standard light-emitting heterostructure similar to those of visible or near-infrared light-emitting diodes is considered with respect to the role of lattices and of the amount of omnidirectionality in the extraction performances. Triangular lattices are first-order natural candidates. We examine first whether they can be made omnidirectional thanks to a...
Summary form only given. In integrated optics, waveguides which have highly controllable dispersion while being leak-free would be very useful indeed when making optical interconnections and regions above or below the film. We present a rigorous method for investigating these modes, which are not merely strongly guided; they are true guided modes. We have developed an accurate and generally applicable...
Summary form only given. We present some results of rigorous calculations for a photonic crystal film positioned between two semi-infinite regions of uniform refractive index, where the photonic crystal film itself is a triangular lattice of cylindrical holes etched into a medium having a higher refractive index than the semi-infinite regions. We start by considering a photonic crystal film of infinite...
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