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Directional emission from photonic crystal waveguides

: Chen, C.-C.; Pertsch, T.; Iliew, R.; Lederer, F.; Tünnermann, A.

Postprint (216 KByte; PDF; )

Optics Express 14 (2006), No.6, pp.2423-2428
ISSN: 1094-4087
Journal Article, Electronic Publication
Fraunhofer IOF ()

We propose a novel photonic crystal waveguide design with defects at the termination to provoke directional emission. Because the resulting optical field distribution at the waveguide exit resembles a triple point source, the light can emit with low angular divergence. This phenomenon appears both in photonic crystal structures formed by dielectric rods as well as by air holes.