光诱导LiNbO_3:Fe晶体光孤子串的形成  

Formation of Optical Soliton Trains in Photonic Lattices by Light-induced LiNbO_3:Fe Crystal

作　　者：张兰根[1] 杨立森[1] 张宝光[1] 付存宝[1] 张印[1] 房艳永[1] 

机构地区：[1]内蒙古师范大学物理与电子信息学院,内蒙古呼和浩特010022

出　　处：《内蒙古师范大学学报（自然科学汉文版）》2011年第3期250-253,257,共5页Journal of Inner Mongolia Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(60467002);内蒙古自然科学基金资助项目(2009MS0905);内蒙古师范大学研究生科研创新基金项目(CXJJS09041)

摘　　要：用条形光束辐照具有光子晶格结构的自散焦LiNbO3:Fe晶体,在适当条件下,辐照在光子晶格上的条形光束会产生光孤子串,而且无需施加外电场.实验结果显示,影响光孤子串形成的因素有光束宽度、晶格周期和晶格折射率变化量等.对光孤子串现象产生的原因进行了理论分析,所得结论与实验结果符合的较好.In the experiment,we observe the formation of optical soliton trains in optically-induced photonic lattices which fabricated in LiNbO3：Fe crystal.Such soliton trains are generated by sending a stripe beam into a two-dimensional square lattice in a certain experimental condition.The experimental results and the theoretical analysis show that there are many factors in formating optical soliton trains,such as the width of stripe beam,spatial period of photonic lattice and the change extent of the refractive index.These experimental results are very significant for the study of photorefractive soliton and other novel solitons in other Nonlinear discrete systems.

关 键 词：光诱导 光孤子 LINBO3:FE晶体 光子晶格 

分 类 号：O417.1[理学—理论物理]