| 弱非局域介质中的Sech型损耗空间光孤子 |
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| 引用本文： | 王形华,朱海榕.弱非局域介质中的Sech型损耗空间光孤子[J].赣南师范学院学报,2008,29(3):50-53. |
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| 作者姓名： | 王形华 朱海榕 |
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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
2. 赣南师范学院,应用物理研究所,江西,赣州,341000 |
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| 摘 要： | 运用变分法研究了1＋1维sech型光束在含有小损耗的弱非局域非线性介质中的传输特性,得到了光束各参量的演化方程和一个临界功率.在介质损耗足够小的前提下,当光束初始功率等于临界功率时,得到了一个sech型损耗空间光孤子.
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| 关 键 词： | 非线性光学 变分法 弱非局域介质 小损耗 损耗孤子 |
Sech Spatial Lossy Soliton in Weakly Nonlocal Media |
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| WANG Xing-hua,ZHU Hai-rong.Sech Spatial Lossy Soliton in Weakly Nonlocal Media[J].Journal of Gannan Teachers' College(Social Science(2)),2008,29(3):50-53. |
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| Authors: | WANG Xing-hua ZHU Hai-rong |
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| Institution: | WANG Xing-hua, ZHU Hai-rong ( a. School of Physics and Electronic Information; b. Institute of Applied Physics, Gannan Normal University, Ganzhou 341000, China) |
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| Abstract: | The propagation property of 1 1 dimensional sech optical beam in small lossy strongly nonlocal nonlinear media is investigated by means of variational method.The evolution equations of the parameters,and a critical power are obtained for the beam.In the case of small loss,a lossy optical spatial soliton with beam width slow diffraction is found when the input power equals the critical power. |
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| Keywords: | nonlinear optics variational method weakly nonlocal media small loss lossy soliton |
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