摘要
利用奇异摄动理论中的多重尺度方法导出描述双Λ型四能级原子介质中探测光的演化方程,并研究此方程的解以及解所表示的非线性演化。我们发现,只需要很低的输入功率就能在电磁感应透明介质中产生时间矢量光孤子。
By using multiple-scale methods, we derive the coupled nonlinear Schr?dinger equation describing the envelope function of the two polarization components of the probe field in a four-level double- Λ EIT media. Then we present the various temporal vector solitons solutions and study their evolvement along with the time and propagating distance. It is shown that the temporal vector optical solitons with very low light intensity can form and propagate stably in this system, as the effect of electromagnetically induced transparency enhance the nonlinear effect and suppress the absorption of media for the probe field. This is different from the conventional nonlinear optical medium such as optical fiber and waveguide.
作者
佘彦超
樊丽娟
冉茂武
SHE Yanchao;FAN Lijuan;RAN Maowu(Department of Physics and Electronics Science, Tongren University, Tongren 554300, China)
出处
《铜仁学院学报》
2017年第3期27-30,共4页
Journal of Tongren University
基金
贵州省自然科学研究项目重点项目"基于量子点耦合的纳米光机械系统中的非线性光学特性"(KY2015384)
贵州省科技厅联合基金"半导体量子材料耦合效应对弱光非线性的量子调控"(LH20157228)
铜仁学院博士启动基金项目"半导体耦合量子点中光孤子动力学行为的量子调控"(trxyDH1529.5)
关键词
时间矢量光孤子
电磁感应透明
多重尺度方法
temporal vector Solitons
electromagnetically induced transparency
multiple-scale methods
