孤子光束倾斜入射非局域非线性分界面的传输特性研究-暨南大学.PDF

31 5 Vol. 31, No. 5 2011 5 ACTA OPTICA SINICA May, 2011 孤子光束倾斜入射非局域非线性分界面的 传输特性研究 1, 2 1, 2 1, 2 1, 2 肖 毅 陈 哲 余健辉 唐洁媛 1 , 510632 2 , 510632 ( 1+ 1) , 5 , 5 , , , 5 , 5 ; ; ; ; ; O437 A doi: 10. 3788/ AOS201131. 0519001 Propagation of Spatial Optical Solitons at an Oblique Angle of Incidence to Nonlocal Nonlinear Interfaces Xiao Yi1, 2 Chen Zhe1, 2 Yu Jianhui1, 2 T ang Jieyuan1, 2 1Key Laboratory of O t oelectron ic Infor mat ion and Sensing Techn ologies of Guangdong Higher Education In stit utes , J inan University , Gu an gzhou , Guangdong 510632, Chin a 2 De ar tm en t of O toelectr on ic En gin eerin g, Jin an Un iversit y , Guangzhou , Gu an gdon g 510632, China Abstract The propagation of a ( 1+ 1 D spatial optical soliton beam at an oblique angle of incidence to a nonlocal nonlinear interface is studied by using numerical method. It is found that the intensity dependence of the propagation of a light beam at a nonlinear nonlocal interface can be portrayed by 5 node points of beam width of the incident soliton beam, which mark respectively 5 critical intensity value of the incident beam that cause the sudden changes of the propagation of the reflection or the transmission beam. It is also found that with the incident beam width keep unchanged and its power is increased, the 5 sudden change points of the propagation of the incident optical breathing beam can also arise, which illustrate that the power dependence is essentially intensity dependence. The change of the values of the 5 node poi