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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。
Using the plane wave expansion method, the application of photonic crystals in the field of solution concentration detection was studied. Two-dimensional triangular lattice photonic crystals (Si and Ge) were selected as the substrate, and the mixed binary materials with different percentages of different concentrations were filled in the air holes to obtain photonic crystals with binary polarization-mode photonic crystals under different polarization modes Belt structure. The results show that when the binary solution is used as the dielectric material in the air hole, the photonic bandgap (PBG) will change when the mass concentration of the solution is different. This solution of the percentage of mass concentration detection has some guidance.