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| 光量子阱单滤波、多通道开关 | |
| 引用本文： | 胡水龙,徐旭明,于天宝.光量子阱单滤波、多通道开关[J].光子学报,2004,33(8):1004-1006. |
| 作者姓名： | 胡水龙 徐旭明 于天宝 |
| 作者单位： | 南昌大学材料科学研究所,南昌,330047;南昌大学物理系,南昌,330047 |
| 基金项目： | 国家自然科学基金 (批准号 :6 2 0 6 80 0 1)，江西省自然科学基金资助项目，南昌大学基础理论基金项目资助 |
| 摘 要： | 在对称的光学厚度为1/4波长光子晶体体系中插入另一光学厚度为半波长的光子晶体形成光量子阱.通过控制入射光强可微小地改变此含缺陷光子晶体材料的介电常数,从而可形成高效的多通道光学开关,同时位于中心频率处的EM波保持高透射.研究表明该光学开关的阈值随缺陷光子晶体的层数增加而减小. |
| 关 键 词： | 光子晶体 局域 光开关 阈值 |
| 收稿时间： | 2003-07-21 |
| 修稿时间： | 2003年7月21日 |
The Single Filtering and Multiple Channeled Switchs in Photonic Quantum-well Structures |
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.The Single Filtering and Multiple Channeled Switchs in Photonic Quantum-well Structures[J].Acta Photonica Sinica,2004,33(8):1004-1006. |
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| Authors: | |
| Institution: | (1 Institute of Materials Science,Nanchang University,Nanchang 330047) (2 Department of Physics,Nanchang University,Nanchang 330047) |
| Abstract: | The formation of photonic quantum well structures by employing another half wave photonic crystals in symmetrical quarter-wave photonic crystals is demonstrated. Due to the strong localization of electromagnetic wave at defect regions,the confined states are greatly dependent on the defects. High-efficiency multiple channeled optical switches can be realized by the small changes of the dielectric constants the defect PC induced by a control light. The strong localization of EM wave can be realized by using an impurity band of coupled cavity as an optical well. At the same time,the EM wave in the center frequency is kept to high transmission .The threshold of such switches can be made very low by increasing the layer number of defect PC. |
| Keywords: | Photonic crystal Located Optical switch Threshold |
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