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| Formation of absolute PBG of 2D square lattice by changing the shapes and orientations of rods | |
| 基金项目： | This work was supported by the National Natural Science Foun-dation of China (60477020) |
| 摘 要： | Since 2Dphotonic crystal has been successfullyfabri-cated[1], many researches have shownthat loweringthesymmetry of the photonic crystals can contribute to ob-taining a large Photonic band gap(PBG)[2]. More re-cently,it has been shown that reorienting the directionof square rods in square lattices can make an absolutePBG appear and even move towards the direction ofhigher frequency[2]. In this letter we mainly concerned with the absolutePBGin 2D square lattice structures , which array with… |
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