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Micromachines 2018, 9(8), 417; https://doi.org/10.3390/mi9080417

Electromagnetically Induced Transparency (EIT) Like Transmission Based on 3 × 3 Cascaded Multimode Interference Resonators

International School (VNU-IS), Vietnam National University (VNU), Hanoi 1000, Vietnam
Received: 1 July 2018 / Revised: 27 July 2018 / Accepted: 1 August 2018 / Published: 20 August 2018
(This article belongs to the Special Issue Micro-Resonators: The Quest for Superior Performance)
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Abstract

We propose a method for generating the electromagnetically induced transparency (EIT) like-transmission by using microring resonator based on cascaded 3 × 3 multimode interference (MMI) structures. Based on the Fano resonance unit created from a 3 × 3 MMI coupler with a feedback waveguide, two schemes of two coupled Fano resonator unit (FRU) are investigated to generate the EIT like transmission. The theoretical and numerical analysis based on the coupled mode theory and transfer matrix is used for the designs. Our proposed structure has advantages of compactness and ease of fabrication. We use silicon waveguide for the design of the whole device so it is compatible with the existing Complementary Metal-Oxide-Semiconductor (CMOS) circuitry foundry. The fabrication tolerance and design parameters are also investigated in this study. View Full-Text
Keywords: optical microring resonator; electromagnetically induced transparency (EIT); multimode interference (MMI); transfer matrix method (TMM); finite difference time difference (FDTD); beam propagation method (BPM) optical microring resonator; electromagnetically induced transparency (EIT); multimode interference (MMI); transfer matrix method (TMM); finite difference time difference (FDTD); beam propagation method (BPM)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Le, T.-T. Electromagnetically Induced Transparency (EIT) Like Transmission Based on 3 × 3 Cascaded Multimode Interference Resonators. Micromachines 2018, 9, 417.

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