论文标题
激光腔中的拓扑模式通过特殊状态转移
Topological Modes in a Laser Cavity through Exceptional State Transfer
论文作者
论文摘要
在科学和技术的各个领域，塑造激光系统的光发射特性非常重要。在典型的激光布置中，该模式的空间轮廓在整个腔体中往往保持自相似。在这里，我们介绍了一个范式转变，在该范式上，空间不断发展的模式被忠实地定居在激光腔的两个方面。这是通过故意消除非绝热跳跃的目的结构中实现的，该结构具有动态包围，对非弱者特殊点的动态包围。由此产生的状态转移反映了相关的Riemann表面的独特拓扑。我们的方法提供了开发多功能模式选择性活动的途径
Shaping the light emission characteristics of laser systems is of great importance in various areas of science and technology. In a typical lasing arrangement, the spatial profile of the mode tends to remain self-similar throughout the cavity. Here, we introduce a paradigm shift where a spatially evolving mode is faithfully settled into a pair of bi-orthogonal states at the two facets of a laser cavity. This is achieved by deliberately eliminating non-adiabatic jumps in a purposely designed structure that features a dynamic encirclement of a non-Hermitian exceptional point. The resulting state transfer reflects the unique topology of the associated Riemann surfaces. Our approach provides a route to develop versatile mode selective active
