Directional emission from photonic crystal waveguides.
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.
Chen
Chii-Chang
CC
Pertsch
T
T
Iliew
R
R
Lederer
F
F
Tünnermann
A
A