Salient role of the non-Hermitian coupling for optimizing conditions in multiple maximizations of inter-cavity light transfer
| Autor: | Hyeon-Hye Yu, Chang-Hwan Yi, Sunjae Gwak, Chil-Min Kim, Jung-Wan Ryu, Hyundong Kim |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Coupling
Physics business.industry Process (computing) 02 engineering and technology 021001 nanoscience & nanotechnology Slow light Topology Coupled mode theory 01 natural sciences Hermitian matrix Atomic and Molecular Physics and Optics 010309 optics Wavelength Optics 0103 physical sciences Whispering-gallery wave 0210 nano-technology Maxima business |
| Zdroj: | Optics express. 29(13) |
| ISSN: | 1094-4087 |
| Popis: | We reveal that non-Hermitian lossy couplings in an inter-cavity light transfer process are crucial for an optimum light transfer, unlike the prevailed belief. Our results turn out the fact that the light transfer can have multiple maxima following the increased inter-cavity distance. To validate this finding both in the weak and strong coupling regimes, we demonstrate our claim in the vicinity of the so-called exceptional point. We believe our results can contribute to realizing coupled-optical-cavity-based devices which is functional with an ultra-efficient light transfer, especially when the device scale is as small as the operation wavelength. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|