Grey spatial solitons due to two-photon photorefractive effect

• 来源期刊: 中国物理（英文版）
• 关键词: photorefractive effect spatial soliton photorefractive material
• 年，卷（期）: 2007,（1）
• 页码范围: 159-164
• 页数: 6页
• 语种: 英文

摘要

This paper predicts that grey spatial solitons can exist in two-photon photorefractive materials. In steady state and under appropriate external bias conditions, it obtains the grey spatial soliton solutions of the optical wave evolution equation. The intensity profile, phase distribution, and transverse velocity of these grey solitons are discussed.