通过应变工程调控磷烯中的电与磁 Purcell 效应
Controlling electric and magnetic Purcell effects in phosphorene via strain engineering
AI总结：
本文研究单轴应变对磷烯衬底附近量子发射体自发辐射的调控，发现电与磁 Purcell 效应可从近完全抑制到增强超 1300%，并可用应变定制衰变路径。
摘要：
我们研究了在单轴应变影响下，位于涂覆磷烯的衬底附近的量子发射体的自发辐射寿命。我们同时考虑了从激发态到基态的由电偶极子和磁偶极子介导的自发跃迁。磷烯的建模采用了超越通常低能描述的紧束缚模型。我们证明，施加均匀应变可以强烈调谐电衰减率和磁衰减率，其范围从几乎完全抑制 Purcell 效应到由于磷烯褶皱晶格结构所关联的高柔性而实现超过 1300% 的显著增强。我们还揭示了利用应变作为一种机制来定制发射量子最可能的衰变路径。我们的结果表明，单轴应变的磷烯凭借其非凡的光力学特性，是一种高效且多功能的材料平台，可用于主动控制光与物质相互作用。
英文摘要：
We investigate the spontaneous emission lifetime of a quantum emitter near a substrate coated with phosphorene under the influence of uniaxial strain. We consider both electric dipole and magnetic dipole-mediated spontaneous transitions from the excited to the ground state. The modeling of phosphorene is performed by employing a tight-binding model that goes beyond the usual low-energy description. We demonstrate that both electric and magnetic decay rates can be strongly tuned by the application of uniform strain, ranging from a near-total suppression of the Purcell effect to a remarkable enhancement of more than 1300% due to the high flexibility associated with the puckered lattice structure of phosphorene. We also unveil the use of strain as a mechanism to tailor the most probable decay pathways of the emitted quanta. Our results show that uniaxially strained phosphorene is an efficient and versatile material platform for the active control of light-matter interactions thanks to its extraordinary optomechanical properties.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
