【摘要】 运用平面波展开法,研究了光子晶体在溶液浓度检测领域上的应用。选择二维三角晶格光子晶体(Si和Ge)作为基底,在空气孔内填充待测百分比浓度不同的混合二元溶液材料,得到了二元溶液填充的光子晶体在不同偏振模式下的光子禁带结构。结果表明,以二元溶液作为空气圆孔中的介质材料,当溶液质量百分比浓度不同时光子带隙(PBG)会发生变化。这对溶液质量百分比浓度检测应用方面有一定的指导作用。更多还原

【Abstract】 The application of photonic crystal in the solution concentration detection is investigated by using plane wave expansion method. A two-dimensional triangular lattice photonic crystal(Si and Ge) is chosen as the substrate,filling the air hole with different percentage concentration of mixed binary solution materials which will be measured,and the photonic band gap of the photonic crystal filled with binary solution under different polarization modes is obtained. The results show that when the binary solution is used as the dielectric material in the air hole, the photonic band gap(PBG) changes with the different percentage concentrations of the solution quality. This has a certain guiding function in solution mass percentage concentration detection applications.更多还原