【Key words】 Incoherent beam； Spatial soliton； Photorefractive medium； Vector beams.；
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双光子光折变介质 two-photon photorefractive medium
When the diffraction of optical beam is exactly balanced by the nonlinear effect in photorefractive medium, it’s possible to form a photorefractive spatial soliton whose shape is unchanged.
当光折变介质中的非线性效应恰好与光束的衍射效应相互平衡时,介质中可以形成形状保持不变的光折变空间光孤子。
参考来源 - 双光子光折变介质中Manakov孤子的理论研究·2,447,543篇论文数据，部分数据来源于NoteExpress
具有双光子光折变效应的光折变介质温度的变化对光伏孤子性质具有影响。
The characteristic of the photovoltaic spatial solitons in two-photon photorefractive media is influenced by the temperature of the media.
预言了亮-亮，暗-暗和亮-暗非相干耦合空间孤子对可存在于中心对称光折变介质中。
Incoherently coupled dark-dark , bright-bright and bright-dark screening soliton pairs in centrosymmetric photorefractive crystals are possible due photorefractive effect.
光折变空间光孤子是指当光折变材料的自聚焦效应与光束的衍射发散作用相平衡时，在介质内无衍射向前传播的光束。
Photorefractive (PR) spatial solitons form when the self-focusing of a light beam inside the PR material exactly balances the diffraction of the beam.
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