Refractive Behavior of 2D Square Lattice Photonic Crystals Determined by Reducing the Symmetry of the Unit Cell

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概要

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• We studied the refractive behavior of two-dimensional (2D) photonic crystals consisting of rods with a rectangular cross section. All crystals treated in this work are assumed to have the same lattice constant. By modifying only the rod's side ratio, we found that negative or positive anisotropic refractive behavior or a photonic band gap can be observed. This behavior is confirmed by using a rigorous electromagnetic theory, namely, the finite-difference time-domain (FDTD) method. By taking advantage of this behavior, we furthermore combined crystals with different properties, and showed that the smooth conjunction produced by the same lattice constant allows each part of the combined crystal to keep its refractive property as if each part were treated individually.

• 社団法人応用物理学会の論文
• 2002-11-15

著者

• Klaus W

  Communications Research Laboratory

• Takayama Yoshihisa

  Communications Research Laboratory

• Klaus Werner

  Communications Research Laboratory

関連論文

• Refractive Behavior of 2D Square Lattice Photonic Crystals Determined by Reducing the Symmetry of the Unit Cell

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