1) two-beam coupling experiment
2) Coupling experiment
3) two-wave coupling
The photorefractive properties of the Ce:Fe:LiNbO 3crystals were experimentally studied by using the two-wave coupling method.
In two-wave coupling experiments,writing and erasure curves were measured,and writing time constants,erasure time constants,and maximum diffraction efficiency of the crystals were obtained from the curves.
the relationship between two-wave coupling gain and carrier concentration in photorefractive LiNbO3 crystal is analyzed.
4) two-beam coupling
Pulsation features of the diffraction beam in the phase-shifted refractive index grating under electric field was studied in C_(60)-doped nematic liquid crystal by two-beam coupling experiment.
The photorefractive properties of these materials were measured by using two-beam coupling (TBC) and four-wave mixing (FWM) techniques and interpreted in term.
The character of the two-beam coupling and the four-wave coupling in BSO is investigated in this thesis.
5) two-wave mixing
A study of two-wave mixing and phase conjugation for Zn:Fe:LiNbO_3
Optical transmission spectra and the gain of photorefractive effect two-wave mixing were investigated in double-doped LiNbO 3(Ce:Fe,Ce:Mn,Mn:Fe).
报道了双掺杂Ce :Fe ,Ce :Mn ,Mn :Fe生长态LiNbO3(LN)的光谱及光折变效应二波耦合增益特性 。
We have analysed the results of the photorefractive two-wave mixing in LiNbO 3∶Fe and LiNbO 3∶Fe∶In controlled by an incoherent beam, and performed related experiments.
理论分析和实验观测了非相干背景光辐照下掺杂LiNbO3晶体中的二波耦合 ,发现非相干背景光能够在很大范围内灵活有效地控制信号光增益 ,抑制扇形效应 ,提高信噪比 ,缩短光栅的建立时间 。
6) two wave mixing
The behavior of the gain of two wave mixing in KNSBN crystal in the temperature range of 300～420 K is investigated.
Cat mutually pumped phase conjugation configuration are discovered and investigated by using two wave mixing in KNSBN crystal.
在KNSBN∶Ce晶体中 ,利用二波耦合作用 ,在单一光束无法获得相位共轭光的条件下 ,实现了“猫”式互抽运相位共轭光输出 ,获得较高的共轭光反射率 。
We measured the gain efficiency in PVK:5CB:C 60 composite by two wave mixing and carried out enhancement of the gain efficiency through chopping technique.
通过二波耦合测量了光折变聚合物PVK :5CB :C6 0 中的耦合增益系数 ,并利用斩波调制技术实现了二波耦合增益系数的增强 。