双光子光折变光伏明孤子的演化和自偏转

The Evolution and Self-defltion of Photovoltaic Spatial Solitons in Two-photon Photovoltaic Photorefractive Media

通过数值模拟的方法,研究了双光子光折变光伏明孤子的动态演化和自偏转特性.结果表明:在忽略扩散和损耗的情况下,光伏明孤子能在双光子光折变晶体中稳定传播.考虑扩散效应之后,明孤子光束中心将发生自偏转.自偏转程度首先随入射光强的增加而增加,当光强达到一定程度后随着入射光强的增加偏转程度反而减小.

Dynamical evolution and seff-deflection of photovohaic spatial solitons in two-photon photovoltaic photorefractive media is numerically investigated. The results show that the two-photon screening spatial solitons can prooagate in the crystal in the case of neglecting the diffusion and loss. The diffusion effect can cause self-deflection for photovohaic spatial soliton. The degree of self-deflection of photovoltaic spatial soliton is increasing when incidence light to grow in intensity. At an extent of incidence light, the degree of self-deflection is decreasing when incidence light to grow in intensity.