论文标题
拓扑弯曲空间上的微腔的地球光子耦合和非热的特殊点
Geodesic photon coupling and non-Hermitian exceptional point of microcavities on topologically curved space
论文作者
论文摘要
支持窃窃私语模式（WGM）的不对称微腔对于片上光学信息处理具有重要意义。我们在拓扑弯曲的表面上定义了不对称的微腔，在该表面上，地球光轨迹完全重建了腔模式的特征。通过空间曲率，可以增加扁平空腔中混乱和岛屿模式的质量因素。当空间曲率使它们引起共振，从而导致腔体光子能量和生命周期的精细定制时，就会发生截然不同的原始模式之间的强和弱耦合。最后，我们证明，通过改变整体损失，可以清楚地观察到一个特殊的点，即腔光子能量和寿命都变性。我们的工作是在光学混沌动力学，非炎症物理学和地球光学设备的交叉点上，并将打开大地测量微神经光子学的新型区域。
Asymmetric microcavities supporting Whispering-gallery modes (WGMs) are of great significance for on-chip optical information processing. We define asymmetric microcavities on topologically curved surfaces, where the geodesic light trajectories completely reconstruct the cavity mode features. The quality factors of the lossy chaotic and island modes in flat cavities can be increased by up to ~200 times by the space curvature. Strong and weak coupling between modes of very different origins occur when the space curvature brings them into resonance, leading to a fine tailoring of the cavity photon energy and lifetime. Finally, we prove that by varying the overall loss, an exceptional point can be clearly observed at which both the cavity photon energy and lifetime become degenerate. Our work is at the crosspoint of optical chaotic dynamics, non-Hermitian physics and geodesic optical devices, and would open the novel area of geodesic microcavity photonics.
