Summary form only given. Synthetic opal provides a 3D template for the formation of photonic crystals for visible light operation. Improvement of the photonic bandgap structure of opal has been approached via coating the inner surface of the opal with TiO/sub 2/, InP or GaP layers using CVD and MOCVD. In contrast to other methods of embedding high refractive index materials in opal these methods allow the crystallinity of the original template to be preserved. The high refractive index coating serves to increase the width of the photonic stop-band and to squeeze the angular dispersion of the stop-band.
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机译:仅提供摘要表格。合成蛋白石为可见光操作提供了用于形成光子晶体的3D模板。通过使用CVD和MOCVD在TiO2 / sub 2 /,InP或GaP层上覆盖蛋白石的内表面,已经达到了改善蛋白石的光子带隙结构的目的。与在蛋白石中嵌入高折射率材料的其他方法相比,这些方法可以保留原始模板的结晶度。高折射率涂层用于增加光子阻带的宽度并挤压阻带的角度色散。
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