| Negative refraction and reflection of Gaussian beam on two-dimensional photonic crystal slab |
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| 作者姓名： | 方云团 刘玉真 沈廷根 |
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| 作者单位： | Department of Physics Zhenjiang Watercraft College Zhenjiang 212003，Department of Physics Nanjing University of Science and Technology，Nanjing 210094，Department of Physics Jiangsu University，Zhenjiang 212003 |
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| 基金项目： | This work was supported by the Natural Science Foundation of Jiangsu Province of China under Grant No. BK2004059. |
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| 摘 要： | The refraction and reflection of Gaussian beam on two-dimensional photonic crystal (2DPC) slab are studied by the finite-difference time-domain (FDTD) method. It is shown that 2DPC slab enables negative refraction, which is demystified by the distribution of Poynting vector directions and values inside the 2DPC. A negative Goos-Hanchen shift is also found in the simulation.
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