By using directive evaporation, linear arrays of opals are formed inside the microchannels on the flat Si wafer. The results show that the samples have photonic band gaps in the visible region. Compared with flat substrates, the microchannels have confining effect on the growth of opals to some extent.
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许静,谢凯,龙永福,等.自组装SiO2光子晶体线形阵列. Self-assembly of Sub-micrometer Spheres into LinearArrays of Silica Photonic Crystals[J].国防科技大学学报,2005,27(1):5-7.