| 表面激子极化激元的定域化 |
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| 引用本文： | 王青松,成泽.表面激子极化激元的定域化[J].华中科技大学学报(自然科学版),2003,31(3):105-107. |
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| 作者姓名： | 王青松 成泽 |
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| 作者单位： | 华中科技大学物理系 |
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| 基金项目： | 国家自然科学基金资助项目 ( 1 0 1 740 2 4) . |
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| 摘 要： | 在存在着随机粗糙和空间色散时，利用了一个数字模型研究表面激子极化激元的定域化．发现定域化出现在表面激子极化激元的最大频率附近，在广延态上的衰减长度大于定域态上的衰减长度，表面激子极化激元的定域化是受到粗糙表面散射波的毁灭性干涉所引起的．
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| 关 键 词： | 激子 极化激元 定域化 |
| 文章编号： | 1671-4512(2003)03-0105-03 |
| 修稿时间： | 2002年3月26日 |
Localization of surface-exciton polaritons |
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| Wang Qingsong Cheng Ze Wang Qingsong Poctgraduate, Dept. of Physics,Huazhong Univ. of Sci. & Tech.,Wuhan ,China..Localization of surface-exciton polaritons[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2003,31(3):105-107. |
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| Authors: | Wang Qingsong Cheng Ze Wang Qingsong Poctgraduate Dept of Physics Huazhong Univ of Sci & Tech Wuhan China |
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| Institution: | Wang Qingsong Cheng Ze Wang Qingsong Poctgraduate, Dept. of Physics,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | A numerical model for investigating the localization of surface exciton polaritons in the presence of random roughness and spatial dispersion was established. It was found that the localization occurred in a limited frequency range near the maximum frequency of surface exciton polaritons. The decaying length in the extended region was larger than that in the localized region. The localization of surface exciton polaritons was caused by the destructive interference between waves scattered from the rough surface. |
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| Keywords: | exciton polariton localization |
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