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LiNbO3晶体中光伏亮孤子实验研究
Experimental study of bright photovoltaic solitons in lithium niobate crystal
【摘要】 从理论上分析了具有不同Glass常数的背景光在晶体折射率空间分布相对变化中的作用,得到了折射率改变为负的晶体中形成亮、暗光伏孤子的条件.以此为基础,用532nm的e光作信号光、488nm的o光作背景光并不断变化背景光和信号光的功率,首次在实验上观察到了LiNbO3∶Fe晶体中亮光伏孤子的形成.
【Abstract】 The effect of background beam with different Glass constant on the relative spatial refractive perturbation in photovoltaic crystal was discussed, in which was introduced the concrete conditions for the formation of bright or dark photovoltaic spatial solitons in crystals with negative refractivity change. Based on the results, for what is to our knowledge the first time, the bright photovoltaic solitons was experimentally observed in LiNbO3:Fe by use of e-ray signal of 532nm and o-ray background illumination of 488nm.
【关键词】 亮光伏孤子;
自散焦;
自聚焦;
光生伏打效应;
【Key words】 bright photovoltaic soliton; self-defocusing; self-focusing; photovoltaic effect;
【Key words】 bright photovoltaic soliton; self-defocusing; self-focusing; photovoltaic effect;
【基金】 国家自然科学基金(批准号:10674176);西北大学研究生创新教育项目(批准号:07YJC01)资助的课题~~
- 【文献出处】 物理学报 ,Acta Physica Sinica , 编辑部邮箱 ,2008年06期
- 【分类号】O437
- 【被引频次】4
- 【下载频次】116