| 活性无序介质中泵浦功率对局域模发射的影响 |
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| 引用本文： | 谢应茂,刘正东.活性无序介质中泵浦功率对局域模发射的影响[J].光子学报,2009,38(3):551-555. |
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| 作者姓名： | 谢应茂 刘正东 |
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| 作者单位： | 1. 赣南师范学院,物理与电子信息学院,江西,赣州,341000;南昌大学,纳米技术工程研究中心,南昌,330047
2. 南昌大学,纳米技术工程研究中心,南昌,330047 |
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| 摘 要： | 基于具有局域-非周期-类结构的活性无序介质中的复杂局域模与合适泵浦光的相互作用模型,研究活性无序介质中泵浦功率对局域模发射的影响,定性解释了泵浦功率对局域模发射的影响.结果表明,局域-非周期-类结构的无序介质的透射谱只与介质的结构有关,而与介质的损耗和增益无关,不同的激发模具有不同的泵浦功率阈值.
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| 关 键 词： | 激光物理 无序介质 局域模 泵浦功率 Laser physics Random media Localized modes Pump power |
| 收稿时间： | 2007-10-29 |
| 修稿时间： | 2007-12-23 |
Effect of Pump Power on the Lasing of Localized Modes in Active Random Media |
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| XIE Ying-Mao,LIU Zheng-Dong.Effect of Pump Power on the Lasing of Localized Modes in Active Random Media[J].Acta Photonica Sinica,2009,38(3):551-555. |
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| Authors: | XIE Ying-Mao LIU Zheng-Dong |
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| Institution: | 1 School of Physics and Electronic Information;Gannan Normal University;Ganzhou Jiangxi 341000;China;2 Engineering Research Center for Nanotechnology;Nanchang University;Nanchang330047;China |
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| Abstract: | The effect of pump power on the lasing of localized modes in active random media is investigated. The threshold of pump power for the lasing of localized modes was qualitatively explained by means of the model which lasing was ascribed to the interaction of the complex localized modes in active random media with local aperiodic quasi-structure with appropriate pump light. The frequency of localized modes does not change with the loss and gain of active random media, and the pump power threshold for different lasing modes is different. |
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| Keywords: | Laser physics Random media Localized modes Pump power |
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