Line defects can be created holographically in the photonic crystals by an additional exposure with proper intensity and then develop the recording medium to high contrast.

• 在分析有缺陷的光子晶体时，我们利用重覆曝光和把记录介质冲洗到高对比的方法，并适当的控制雷射的强度，可制造出有线缺陷的全像光子晶体。