| 对数型非线性电介质中的一维空间亮孤子 |
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| 引用本文： | 卫青,王奇.对数型非线性电介质中的一维空间亮孤子[J].光学学报,2003,23(10):172-1175. |
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| 作者姓名： | 卫青 王奇 |
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| 作者单位： | 上海大学物理系,上海,200436 |
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| 基金项目： | 国家自然科学基金 (6 0 1770 2 0 )，上海市教育委员会第四期重点学科资助课题 |
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| 摘 要： | 研究了对数型非线性电介质中空间亮孤子，认为对数型电介质中可支持亮空间孤子，并对其束宽变化作了分析，指出其束宽变化与光源峰值功率成反比：当功率较低时，束宽随功率的增大而急剧减小，表现出良好的非线性效应；当功率不断增大时，束宽的减小趋势逐渐放慢直至停止，对数型材料呈现饱和特性。
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| 关 键 词： | 对数型非线性电介质 一维空间亮孤子 束宽变化 非线性光学 自聚集效应 稳态分析法 |
| 收稿时间： | 2002/8/12 |
One-Dimensional Bright Spatial Solitons in Logarithmically Nonlinear Electric Media |
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| Wei Qing,Wang Qi.One-Dimensional Bright Spatial Solitons in Logarithmically Nonlinear Electric Media[J].Acta Optica Sinica,2003,23(10):172-1175. |
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| Authors: | Wei Qing Wang Qi |
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| Abstract: | The bright spatial solitons in logarithmically nonlinear electric media is studied. It is showed that the bright solitons are possible in corresponding nonlinear media. The spatial width for bright solitons is analyzed. It is revealed that the variation of the beam width is inversely proportional to the peak power of the source: beam width dramatically decreases with increasing the power when the peak power is much lower, exhibiting the good nonlinear effects in such case; The variation of beam width is slow and further constant, exhibiting the saturable propterties for logarithmically nonlinear electric media, when the peak power continuously increases. |
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| Keywords: | nonlinear optics one-dimensional bright soliton steady-state approach logarithmically nonlinear electric media |
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