Collection Of theses on high power laser and plasma physics, 2006, 4 (1): 82, Published Online: Jun. 4, 2007
Scattering by two degenerate anisotropic modes in square-lattice dielectric photonic crystals
Abstract
We systematically investigate the square-lattice dielectric photonic crystals that have been used to demonstrate flat slab imaging experimentally. A right-handed Bloch mode is found in the left-handed frequency region by using the plane wave expansion method to analyze the photonic band structure and equifrequency contours. Using the multiple scattering theory, numerical simulations demonstrate that the left-handed mode and the right-handed mode are excited simultaneously by a point source and result in two kinds of transmitted waves. Impacted by the evanescent waves, superposition of these transmitted waves brings on complicated near field distributions such as the so-called imaging and its disappearance.
Zhixiang Tang, Hao Zhang, Runwu Peng, Yunxia Ye, Lei Shen, Shuangchun Wen, Dianyuan Fan. Scattering by two degenerate anisotropic modes in square-lattice dielectric photonic crystals[J]. Collection Of theses on high power laser and plasma physics, 2006, 4(1): 82.