论文标题
通过放大蜂窝光子晶格传播光
Propagation of light through amplifying honeycomb photonic lattice
论文作者
论文摘要
我们考虑通过在激光阈值下方的弹道放大光子蜂窝晶格的弹道传播。该系统的两个sublattics由具有不同复杂介电渗透率的波引体形成，这导致了用于电磁场的非铁族狄拉克方程。我们揭示了放大区域的临界长度，光子晶格为发电机过渡显示了放大器。在系统的临界长度下，正常入射角处的传输和反射概率得到了强烈的增强。我们还评论了放大对入射光方向和扩增区域厚度的敏感性。
We consider light propagation through a ballistic amplifying photonic honeycomb lattice below the lasing threshold. Two sublattices of the system are formed by the wave-guides with different complex dielectric permittivities, which results in the non-Hermitian Dirac equation for electromagnetic field. We reveal that there exists a critical length of the amplifying region for which the photonic lattice exhibits an amplifier to generator transition. The transmission and reflection probabilities at the normal angle of incidence are strongly enhanced at a critical length of the system. We also comment on the sensitivity of amplification to the direction of incident light and the thickness of the amplifying region.
