管壁材料的折射率越大，测量体的位置与管壁厚趋时位移差也越大。
If the refractive index is larger, the translocation difference of the measurement volume is larger.
另外，研究结果表明组成光子晶体的两种材料的折射率差别越大，两种电磁模的禁带越宽，越容易产生完全光子禁带。
The results of study also shown that the biger difference of refractivity between two kinds of materials, the wider of the bandgap for two electromagnetic modes, and easier to produce full bandgap.
介质折射率差的绝对值越大、周期数增加都使透射波谱宽度变窄。
With the increase of the periods and the absolute value of refractive index difference, the full width at half maximum of spectrum decreases.
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