We propose and analyze novel surface-state-based waveguides in bandgap photonic crystals. We discuss the surface-mode band structure, the field localization, and the effect of imperfections on the waveguiding properties of the surface modes. We demonstrate that surface-state-based waveguides can be used to achieve directional emission out of the waveguide. We also discuss the application of the surface-state waveguides as efficient light couplers for conventional photonic crystal waveguides.
© 2006 Optical Society of America
Original Manuscript: January 3, 2006
Revised Manuscript: March 17, 2006
Manuscript Accepted: March 24, 2006
A. I. Rahachou and I. V. Zozoulenko, "Waveguiding properties of surface states in photonic crystals," J. Opt. Soc. Am. B 23, 1679-1683 (2006)