论文标题
控制手性异常表面的微腔中自发发射动力学的控制
Control of spontaneous emission dynamics in microcavities with chiral exceptional surfaces
论文作者
论文摘要
我们研究了位于微孔谐振器模式内的量子发射器的自发发射，该谐振器具有手性异常点。我们表明，这种配置提供了足够的自由度来展示完整的控制以增强或抑制排放过程。特别是，我们证明，在在分类点上运行的相同的微孔中，percell因子可以增强两个因子。我们的结论是使用非热汉密顿形式主义得出的，它通过使用现实的光子结构和材料的全波模拟来证实。我们的结果为使用当前的光子技术技术提高单个光子源的性能提供了直接的途径，而无需构建具有超高质量因子或纳米级量的光学谐振器。
We investigate spontaneous emission from a quantum emitter located within the mode volume of a microring resonator that features chiral exceptional points. We show that this configuration offers enough degrees of freedom to exhibit a full control to either enhance or suppress the emission process. Particularly, we demonstrate that the Purcell factor can be enhanced by a factor of two beyond its value in an identical microring operating at a diabolic point. Our conclusions, which are derived using a non-Hermitian Hamiltonian formalism, are confirmed by employing full-wave simulations of realistic photonic structures and materials. Our results offer a straightforward route to improve the performance of single photon sources using current photonics technology without the need for building optical resonators with ultrahigh quality factors or nanoscale volumes.
