Temporal Behavior of Low-Amplitude Grey Spatial Solitons in Biased Two-Photon Photorefractive Crystals

• 来源期刊: 理论物理通讯(英文版)
• 学科: 物理学
• 关键词: 空间孤子 光折变效应 时间行为 光子晶体 灰色 低振幅 时间属性 稳定状态
• 年，卷（期）: 2010,（12）
• 页码范围: 1097-1100
• 页数: 4页
• 分类号: O437 O734.1
• 语种: 英文

摘要

The temporal property of grey screening spatial solitons due to two-photon photorefractive effect in low-amplituderegime is analyzed.The results indicate that a broad solitons is generated at the beginning, and as timeevolves, the intensity width of grey solitons decreases monotonically to a minimum value toward steady state.In thesame propagation time, the FWHM of solitons decreases with ρ increasing or m decreasing.Moreover, the formationtime of solitons is independent of ρ and m.The time is close to a constant determined by the dielectric relaxation time.