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光折变光子晶格中空间二次谐波的产生
引用本文:杨立森,陈玉和,陆改玲,刘思敏.光折变光子晶格中空间二次谐波的产生[J].物理学报,2007,56(7):3966-3971.
作者姓名:杨立森  陈玉和  陆改玲  刘思敏
作者单位:(1)内蒙古师范大学物理与电子信息学院, 呼和浩特 010022; (2)南开大学物理学院,天津 300071
基金项目:国家自然科学基金;内蒙古自然科学基金
摘    要:用干涉法在自散焦光折变晶体 LiNbO3:Fe中写入光子晶格的动态过程中,发现了双光束干涉条纹一分为二,四光束干涉点阵一分为四的分裂现象. 研究证明:这是干涉条纹空间频率的倍频现象,是入射的干涉光场与写入的光子晶格之间相互作用的结果. 本实验说明利用光折变效应可以容易地实现干涉光场空间频率的倍频和空间高次谐波的产生,并可利用产生的空间谐波感应出二倍频和高倍频的光折变光子晶格. 关键词: 光折变晶体 光子晶格 空间谐波

关 键 词:光折变晶体  光子晶格  空间谐波
文章编号:1000-3290/2007/56(07)/3966-06
收稿时间:2006-09-14
修稿时间:2006-09-14

Generation of spacial second-harmonic in photorefrective photonic lattice
Yang Li-Sen,Chen Yu-He,Lu Gai-Ling,Liu Si-Min.Generation of spacial second-harmonic in photorefrective photonic lattice[J].Acta Physica Sinica,2007,56(7):3966-3971.
Authors:Yang Li-Sen  Chen Yu-He  Lu Gai-Ling  Liu Si-Min
Institution:College of Physics and Electronic Information, Inner Mongolia Normal University, Huhhot 010022, China; College of Physics , Nankai University, Tianfin 300071, China
Abstract:Using interference method fabricate photonic lattices in self-defocus photorefractive crystal LNbO3:Fe. We had find the phenomenons that dual-beam interference fringe one divides into two,four-beam interference fringe one divides into four. We had proved it is a kind of phenomena of spacial frequency-doubling, this kind of phenomenon is the result of the interaction between the interfere field and the interfere field fabricative photonic lattices. This experiment had showed that spacial second-harmonic generation and high-order harmonics generation can be easy achieved by photorefractive effect crystal,that second-harmonic can fabricate spacial frequency-doubling photonic lattices, that high-order harmonics can fabricate spacial frequency-high photonic lattices.
Keywords:photorefractive crystal    photonic lattices    spacial frequency
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