A hybrid photonic-crystal structure is presented as a candidate for enhancing transmission through sharp photonic-crystal waveguide bends built on a perforated dielectric slab. This structure, which we refer to as a polycrystalline structure, combines two photonic-crystal lattices. Polycrystalline photonic-crystal structures offer the ability to minimize reflections as well as mismatches that a propagating wave might encounter while undergoing a sharp corner or a discontinuity between different waveguide sections. The availability of polycrystalline structures in photonic crystals opens a broad range of possibilities for the development of optical devices. Numerical experiments are performed with two- and three-dimensional finite-difference time domain methods.
© 2003 Optical Society of AmericaFull Article | PDF Article
Solomon Assefa, Sharee J. McNab, and Yurii A. Vlasov
Opt. Lett. 31(6) 745-747 (2006)
Binglin Miao, Caihua Chen, Ahmed Sharkway, Shouyuan Shi, and Dennis W. Prather
Opt. Express 14(17) 7966-7973 (2006)
Yu-Jia Li and Jian-Ming Jin
J. Opt. Soc. Am. B 24(9) 2406-2415 (2007)