| 周期排列共振放大介质的小信号增益特性研究 |
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| 引用本文： | 陈芳,曾健华,周建英. 周期排列共振放大介质的小信号增益特性研究[J]. 物理学报, 2007, 56(7): 4175-4179 |
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| 作者姓名： | 陈芳 曾健华 周建英 |
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| 作者单位： | 中山大学光电材料与技术国家重点实验室，广州 510275 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);国家自然科学基金 |
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| 摘 要： | 研究一维周期排列共振放大介质的小信号增益特性.研究结果表明小信号增益随着作用长度的增加表现出异常的放大特性.在满足严格布拉格共振条件下，介质折射率分布形成的带隙和增益效应之间的相互竞争决定了透射光场的变化.进一步讨论了增益大小与激子参数和共振原子之间的依赖关系.关键词：周期共振放大介质小信号增益光子带隙
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| 关 键 词： | 周期共振放大介质 小信号增益 光子带隙 |
| 文章编号： | 1000-3290/2007/56(07)/4175-05 |
| 收稿时间： | 2006-11-02 |
| 修稿时间： | 2006-11-02 |
Small signal gain characteristics of periodically arranged resonant amplifying media |
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| Chen Fang,Zeng Jian-Hua,Zhou Jian-Ying. Small signal gain characteristics of periodically arranged resonant amplifying media[J]. Acta Physica Sinica, 2007, 56(7): 4175-4179 |
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| Authors: | Chen Fang Zeng Jian-Hua Zhou Jian-Ying |
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| Affiliation: | State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275, China |
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| Abstract: | The characteristics of small signal gain are studied in a one-dimensional periodically arranged amplifying media. It is proved that the small signal gain characteristics shows special features with the increase of gain material length. The variation in gain is determined by the mutual competition between the photonic band gap formed by the refractive index of amplifying media and gain reaction under the resonant Bragg condition. Furthermore, we investigated the gain on the parameters of excitons and resonant atoms. |
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| Keywords: | periodically arranged resonant amplifying media small signal gain photonic band gap |
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