Abstract
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.
Original language | English |
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Pages (from-to) | 19998-20009 |
Number of pages | 12 |
Journal | Optics Express |
Volume | 29 |
Issue number | 13 |
DOIs | |
State | Published - 21 Jun 2021 |
Bibliographical note
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