Unified approach to mode splitting and scattering loss in high-Q whispering-gallery-mode microresonators
Unified approach to mode splitting and scattering loss in high-Q whispering-gallery-mode microresonators
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DOI：
10.1103/physreva.88.033816
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发表时间：
2013-09-06
影响因子：
2.9
通讯作者：
Adibi, Ali
中科院分区：
文献类型：
--
作者：
Li, Qing;Eftekhar, Ali A.;Adibi, Ali
目前对高品质因子回音壁模式微谐振器表面亚波长散射体引起的模式分裂和散射损耗的理论处理并不令人满意。不同的散射体制度提出的不同模型不能调和。此外，许多实验结果在现有的理论框架内难以理解。在这里，我们开发了一个统一的方法，适用于任意数量的散射体。通过与现有理论模型的比较，揭示了它们的适用条件和局限性。此外，对模式分裂和散射损耗也有了新的认识，并得到了数值和实验的支持。
Current theoretical treatments of mode splitting and scattering loss resulting from subwavelength scatterers attached to the surface of high-quality-factor whispering-gallery-mode microresonators are not satisfactory. Different models proposed for distinct scatterer regimes cannot be reconciled. In addition, many experimental results are difficult to understand within the existing theoretical framework. Here, we develop a unified approach that applies to an arbitrary number of scatterers. Comparison with the existing theoretical models reveals their applicable conditions and limits. Moreover, many new understandings on the mode splitting and scattering loss are achieved, which are supported by numerical and experimental evidence.