Effect of temperature on the evolution of bright and dark screening-photovoltaic spatial solitons

• 来源期刊: 中国物理（英文版）
• 学科: 物理学
• 关键词: nonlinear optics spatial optical solitons photorefractive effects
• 年，卷（期）: 2002,（3）
• 页码范围: 254-259
• 页数: 6页
• 分类号: O4
• 语种: 英文

摘要

We investigate theoretically the temperature effects on the evolution of both bright and dark screening-photovoltaicoptical spatial solitons in biased photovoltaic-photorefractive crystals in the case of neglecting the diffusion process. Fora stable bright or dark screening-photovoltaic soliton originally formed in a crystal at a given temperature, when thecrystal temperature changes, it will evolve into another stable screening-photovoltaic soliton if the change is quite small,whereas it will become unstable or break down if the temperature change is large enough. The spatial shape of a stablescreening-photovoltaic soliton can be reshaped by appropriately adjusting the crystal temperature.