Variational approach to spatial optical solitons in bulk cubic-quintic media stabilized by self-induced multiphoton ionization

作     者：C. P. Jisha V. C. Kuriakose K. Porsezian 

作者机构：[]Department of Physics Cochin University of Science and Technology Cochin 682022 India 

出 版 物：《Physical Review E》 (物理学评论E辑：统计、非线性和软体物理学)

年 卷 期：2005年第71卷第5期

页      面：056615-056615页

核心收录：

学科分类：07[理学] 070203[理学-原子与分子物理] 0702[理学-物理学] 

主　　题：SEMICONDUCTOR-DOPED GLASSES PULSE-PROPAGATION WAVE-GUIDES LIGHT BEAMS 3RD-ORDER BRIGHT AIR 

摘      要：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.