物理学报Issue(23)：234205-1-234205-6,6.DOI:10.7498/aps.62.234205
线性电介质和中心对称光折变晶体界面表面波的研究
Study on surface waves formed at the interface between linear dielectric and centrosymmetric photorefractive crystals
摘要
Abstract
We report localized surface waves at the interface between linear dielectric and centrosymmetric photorefractive (CP) crystals. Adjusting the values of the guiding parameter δ and the propagation constant b, we can easily get three types of surface waves:delocalized surface waves, shock surface waves, and localized surface waves. When the difference between b andδexceeds a certain threshold value, the localized surface waves can form at the interface between linear dielectric and CP crystals. For positiveδvalues, the part of the energy of localized surface waves concentrated in the nonlinear CP crystals is always higher than that in the linear dielectric, and increases monotonically with b. The stability properties of the localized surface waves are investigated numerically and it is shown that they can be stable. In a given system, the orders and waveforms of localized surface waves are controlled by adjusting the variable parameters which determine the strength of nonlinear effects.关键词
非线性光学/中心对称光折变晶体/表面波Key words
nonlinear optics/centrosymmetric photorefractive crystal/surface waves引用本文复制引用
冯天闰,卢克清,陈卫军,刘书芹,牛萍娟,于莉媛..线性电介质和中心对称光折变晶体界面表面波的研究[J].物理学报,2013,(23):234205-1-234205-6,6.基金项目
天津市自然科学基金(批准号:13JCYBJC16400)资助的课题.*Project supported by the Natural Science Foundation of Tianjin, China (Grant No.13JCYBJC16400) （批准号:13JCYBJC16400）
