周期势场相干调控矢量光孤子及其应用研究

By virtue of the periodic laser fields induced quantum coherence and interference effects, this project will investigate the propagation of optical vector solitons and its applications in atomic system and semiconductor nanostructure materials (such as quantum wells, quantum dots). Based on the Maxwell-Bloch equations describing the interaction between laser fields and the medium and the coupled nonlinear Schrödinger equations derived from Maxwell-Bloch equations, we will explore novel properties of the propagation and their interaction of optical vector solitons in atomic system and semiconductor materials driven by periodic laser fields. Utilizing special designed periodic laser fields, we will propose new schemes for controlling the propagation behavior and route of optical vector solitons, which may provide new applications in all-optical switching and optical routing.

利用周期势场诱导的量子相干效应，本项目将进行原子及半导体量子阱、量子点等纳米微结构材料中矢量光孤子的传输特性及其应用方面的研究。基于描述光场与介质相互作用的麦克斯韦-布洛赫方程组及由其推导的耦合非线性薛定谔方程组，研究在周期势场耦合多能级原子系统和半导体量子阱、量子点等纳米微结构材料中矢量光孤子的传输及其相互作用特性；通过设计合适的周期势场耦合方案，探讨对矢量光孤子传输行为和传输路径的控制，并在此基础上探讨实现基于矢量光孤子的全光开关、路由等应用。

基于量子相干效应形成的弱光孤子是近年来光孤子领域的一个研究热点。本项目主要开展了原子及半导体量子阱中的弱光孤子传输及调控的研究，利用周期势场诱导的量子相干效应调控光孤子的传输路径，探讨了基于主动拉曼增益（ARG）方案的原子系统和半导体量子阱系统中矢量光孤子的形成与传输特性，在基于量子干涉效应的矢量光孤子传输及光孤子调控的研究方面取得了一定的进展。