从自散焦到自聚焦的动态转换和相位共轭亮空间孤子  

The dynamic conversion from self-defocusing to self-focusing and the phase conjugate bright spatial soliton

作　　者：刘思敏[1] 汪大云[1] 赵红娥[1,2] 李祖斌[1] 郭儒[1] 陆猗[3] 黄春福[1] 高垣梅[1] 

机构地区：[1]南开大学物理学院 [2]北京师范大学物理系,北京100875 [3]天津理工大学自动化系

出　　处：《物理学报》2002年第12期2761-2766,共6页Acta Physica Sinica

基　　金：国家自然科学基金 (批准号 :698780 0 9和 60 0 780 13 )资助的课题~~

摘　　要：对文献 [1]中所报道的LiNbO3:Fe晶体从自散焦到自聚焦动态转换的过程 ,在实验和理论上作了进一步研究 .以实验结果为依据 ,提出了相位共轭共振腔的理论模型 ,分析了该共振腔在从自散焦到自聚焦的动态转换过程中所起的作用 ,并提出了一种新型的亮空间孤子 ,即相位共轭亮空间孤子 。We have further studied experimentally and theoretically the process of conversion from self - defocusing to self-focusing in LiNbO3 : Fe crystals, which was reported in Acta Phys. Sin. 50 483. Based on our experimental result, we have proposed a new type of theoretical model of phase conjugate resonant cavity, analyzed the role of the cavity in the process of conversion from self-defocusing to self-focusing. We have also proposed a new type of bright spatial soliton, i.e. the phase conjugate bright spatial soliton, and indicated that the bright spatial soliton is a mode in the phase conjugate resonate cavity.

关 键 词：动态转换 相位共轭共振腔 亮空间孤子 自散焦 自聚焦 LINBO3:FE晶体 铌酸锂晶体 

分 类 号：O437[机械工程—光学工程]