首页 | 官方网站   微博 | 高级检索  
     

有倾斜透镜存在时两个刃型位错的相互作用
引用本文:陈海涛*,高曾辉,肖尚辉,王藩侯,程晓洪.有倾斜透镜存在时两个刃型位错的相互作用[J].物理学报,2013,62(4):44207-044207.
作者姓名:陈海涛*  高曾辉  肖尚辉  王藩侯  程晓洪
作者单位:宜宾学院物理与电子工程学院, 计算物理四川省高校重点实验室, 宜宾 644000
基金项目:国家自然科学基金(批准号:61275203)和四川省教育厅自然科学基金(批准号:10Zc031)资助的课题.
摘    要:对存在倾斜透镜时两个刃型位错的相互作用进行了研究.研究表明, 两个离轴刃型位错在一定条件下由于相互作用会消失, 并有一个或两个非正则光涡旋产生, 一个共轴刃型位错和一个离轴刃型位错相互作用时产生一个非正则光涡旋. 当初始场中两个刃型位错相互垂直或者平行时, 出射场中会有一个或者两个刃型位错出现. 改变透镜的倾斜因子不影响出射场中位相奇点的类型和数量, 但位相奇点的横向位置与倾斜因子有线性关系. 两个刃型位错相互作用产生的光涡旋对的三维轨迹是非线性的, 但光涡旋对的中心沿直线传输. 关键词: 位相奇点 刃型位错 非正则光涡旋 倾斜透镜

关 键 词:位相奇点  刃型位错  非正则光涡旋  倾斜透镜
收稿时间:2012-05-12

Interaction between two edge dislocations in the presence of a tilted lens
Chen Hai-Tao,Gao Zeng-Hui,Xiao Shang-Hui,Wang Fan-Hou,Cheng Xiao-Hong.Interaction between two edge dislocations in the presence of a tilted lens[J].Acta Physica Sinica,2013,62(4):44207-044207.
Authors:Chen Hai-Tao  Gao Zeng-Hui  Xiao Shang-Hui  Wang Fan-Hou  Cheng Xiao-Hong
Affiliation:Computational Physics Key Laboratory of Sichuan Province, School of Physics and Electrical Engineering, Yibin University, Yibin 644000, China
Abstract:The interaction between two edge dislocations in the presence of a tilted lens is studied. It is shown that for the interaction between two off-axis edge dislocations, the edge dislocations vanish, and one or two noncanonical vortices appear under certain conditions. A noncanonical vortex appears for the interaction between the on-axis edge dislocation and off-axis edge dislocation. However, one or two edge dislocations may take place when two edge dislocations are perpendicular or parallel to each other in the initial plane. The variation of the tilt coefficient does not affect the type and number of phase singularities, but the relation between the transverse position of phase singularities and the tilt coefficient is linear. The three-dimensional trajectories of vortices are nonlinear while the center of the pair of vortices propagates along a line during propagation.
Keywords:phase singularities  edge dislocation  noncanonical vortices  tilted lens
本文献已被 万方数据 等数据库收录!
点击此处可从《物理学报》浏览原始摘要信息
点击此处可从《物理学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号