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通过多重散射方法数值模拟研究和实验测量表明利用二维光子晶体可以提高波的耦合效率 研究发现 ,高的波耦合效率通常发生在光子禁带的边沿和其它非禁带区的某些频率处 当光子晶体的晶格常数接近于所传输的波的波长时 ,会出现很高耦合效率的共振耦合现象 利用二维光子晶体的情况下的波耦合效率最高可以达到不利用二维光子晶体时的 1.89倍 这种现象在光集成器件中尤其有用
Numerical simulation and experimental measurements by multiple scattering methods show that using two-dimensional photonic crystals can improve the coupling efficiency of the wave. It is found that the high wave coupling efficiency usually occurs at the edges of the photonic band gap and some other non-bandgap frequencies When the lattice constant of the photonic crystal is close to the wavelength of the transmitted wave, the resonance coupling phenomenon with high coupling efficiency occurs. In the case of the two-dimensional photonic crystal, the wave coupling efficiency can reach as high as 1.89 when the two-dimensional photonic crystal is not used This phenomenon is especially useful in optical integrated devices