摘要
实验发现当抽运光波长为514．5nm时，随入射到光折变晶体的抽运光参数（光斑尺寸，入射位置和入射角度）改变，BaTiO3∶Ce自抽运相位共轭的形成机制在双作用区四波混频（FWM－TIR），四波混频-受激背向散射（FWM-SPB）和FWM-TIR＋FWM-SPB之间转变。
An invertigation of mechanisms of self-pumped phase conjugation (SPPC) in BaTio3: Ce crystal in the green, λ = 514. 5 nm on pump beam parameters, such as the beam diameter, the incidence angle and the position was reported. It was found that the SPPC mechanism changed from a 'cat' (FWM-TIM) mechanism to a stimulated photorefractive backscattering and four- wave-mixing (FWM- SPB) when the pump beam diameter, the incidence angle and position were varied, with a transition of FWM-TIR + FWM-SPB mechanism coexisted.
出处
《中国激光》
EI
CAS
CSCD
北大核心
1999年第11期1016-1020,共5页
Chinese Journal of Lasers
关键词
自抽运相位共轭
相位共轭反射率
相共轭形成
self- pumped phase conjugation, reflectivity of phase conjugation,transformation of SPPC formation mechanism
