Variational approach to spatial optical solitons in bulk cubic-quintic media stabilized by self-induced multiphoton ionization.
Variational approach to spatial optical solitons in bulk cubic-quintic media stabilized by self-induced multiphoton ionization.
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DOI：
10.1103/physreve.71.056615
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发表时间：
2005-05
期刊：
影响因子：
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通讯作者：
C. Jisha;V. C. Kuriakose;K. Porsezian
中科院分区：
文献类型：
--
作者：
C. Jisha;V. C. Kuriakose;K. Porsezian
从解析和数值两方面研究了光学高功率柱对称光束在具有三次-五次非线性特性的材料中的传输。在这种情况下，我们必须考虑由于等离子体形成而产生的自由电子的存在所引起的自散焦效应。用变分方法对系统进行了分析研究。数值分析采用有限差分光束传播法。观察到稳定的(2+1)维空间孤子。分析结果与数值计算结果吻合较好。
Propagation of an optical high-power cylindrically symmetric beam in a material characterized by cubic-quintic nonlinearity is studied both analytically and numerically. In this case we have to consider the self-defocusing effect caused by the presence of free electrons produced due to plasma formation. The variational method is used to study the system analytically. The finite-difference beam propagation method is used for the numerical analysis. Stable (2+1) D spatial solitons are observed. The analytical results are found to be in very good agreement with the numerical results.