论文标题
通过扩增光子晶格的光扩散理论
Theory of light diffusion through amplifying photonic lattice
论文作者
论文摘要
我们提出了一项研究通过无序扩增的蜂窝光子晶格的辐射传播的研究，其中弹性散射为光发作提供了反馈。为了探索不同散射机制和放大背景的相互作用，我们考虑了具有随机电势的Dirac Hamiltonian，并得出了平均光强度的扩散方程。在激光阈值附近增强了对扩散系数的传输系数和干扰校正。弱反定位和弱定位行为之间的过渡可以由与扩增和谷间散射率相关的参数控制。
We present a study of radiation propagation through disordered amplifying honeycomb photonic lattice, where elastic scattering provides feedback for light generation. To explore the interplay of different scattering mechanisms and the amplification background, we consider the Dirac Hamiltonian with a random potential and derive diffusion equation for the average intensity of light. The transmission coefficient and interference correction to the diffusion coefficient are enhanced near the lasing threshold. The transition between weak anti-localization and weak localization behaviours might be controlled by the parameters associated with the amplification and inter-valley scattering rates.
