Multiple channeled phenomena in heterostructures with defects mode
Multiple channeled phenomena in heterostructures with defects mode
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DOI：
10.1063/1.1651650
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发表时间：
2004-03
影响因子：
4
通讯作者：
Zhanshan Wang;Li Wang;Yonggang Wu;Lingyan Chen;Xiaoshuang Chen;W. Lu
中科院分区：
文献类型：
--
作者：
Zhanshan Wang;Li Wang;Yonggang Wu;Lingyan Chen;Xiaoshuang Chen;W. Lu
研究了多个异质结构中插入缺陷的透射特性。结果表明，这些结构可以同时实现多通道滤波和禁带展宽。通过调整缺陷的几何和物理参数，可以调谐频率、频率间隔和通道数。与周期性结构的边带相比，禁带的边带可以基本上被限制。利用含有TiO 2/SiO2多层缺陷的异质结构进行了实验制备，实验结果与理论计算吻合较好。
Transmission studies for multiple heterostructures inserted with defects are presented. The results show that the enlargement of the forbidden band and the realization of multiple channeled filtering can be reached simultaneously with these configurations. The frequency, frequency interval, and number of channels can be tuned by adjusting geometric and physical parameters of the defects. Sidebands of the forbidden band can be substantially restricted as compared with that of periodic structures. Experimental fabrication of the designed configurations is carried out with the heterostructures containing TiO2/SiO2 multilayer defects, and the results agree with the calculation very well.