We investigate and simulate the light transmitting and coupling characteristics of surface mode waveguides (SMWs) based on photonic crystals (PhCs) with a triangular lattice of air holes. We demonstrate that surface waves can be efficiently propagated and served as a new kind of high-efficiency single-SMW-based filter with broad bandwidth in the outer space of PhCs. We also explore the highly efficient coupling of hetero-SMWs constructed by cascading different truncated surfaces. The coupling efficiency is insensitive to the interface position.
© 2012 Optical Society of America
Optics at Surfaces
Original Manuscript: November 14, 2011
Revised Manuscript: December 22, 2011
Manuscript Accepted: December 22, 2011
Published: March 21, 2012
Jun Zhang, Tianbao Yu, Nianhua Liu, Jianyi Yang, Qinghua Liao, and Xiaoqing Jiang, "High transmitting and coupling characteristics of light at the surface of a photonic crystal with a triangular lattice of air holes," J. Opt. Soc. Am. B 29, 748-752 (2012)