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arXiv 1412.7482physics.optics
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用PT对称势控制电、磁和手征偶极发射

Controlling electric, magnetic, and chiral dipolar emission with PT-symmetric potentials

Hadiseh Alaeian, Jennifer A. Dionne

摘要:

研究了宇称时间(PT)对称光学势对非手性和手征辐射源辐射的影响。模式聚结和例外点的出现导致发射偶极子功率的数量级增强。此外,可以基于非厄米性参数来调谐发射器以表现为强光源或吸收器。在PT超材料附近辐射的手性对映体在其衰减速率上表现出4.5倍的差异。这项工作的结果可以使新的原子-腔相互作用的量子光学,以及全光学对映体特异性分离。

英文摘要:

We investigate the effect of parity-time (PT)-symmetric optical potentials on the radiation of achiral and chiral emitters. Mode coalescence and the appearance of exceptional points lead to orders-of-magnitude enhancements in the emitted dipole power. Further, the emitter can be tuned to behave as a strong optical source or absorber based on the non-Hermiticity parameter. Chiral enantiomers radiating near PT metamaterials exhibit a 4.5-fold difference in their decay rate. The results of this work could enable new atom-cavity interactions for quantum optics, as well as all- optical enantio-specific separation.

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。

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