Simultaneous Enhancement of Bandwidth and Group Index of Slow Light via Metamaterial Induced Transparency With Double Bright Resonators
We propose a design strategy to alleviate the tradeoff between the wide frequency band and large group index of metamaterial induced slow light. It is realized with a structure consisting of double bright resonators and a single dark resonator in each unit cell. Such a structure enables the slow lig...
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Published in | IEEE journal of selected topics in quantum electronics Vol. 21; no. 4; pp. 295 - 300 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
New York
IEEE
01.07.2015
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subjects | |
Online Access | Get full text |
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Summary: | We propose a design strategy to alleviate the tradeoff between the wide frequency band and large group index of metamaterial induced slow light. It is realized with a structure consisting of double bright resonators and a single dark resonator in each unit cell. Such a structure enables the slow light with enhanced bandwidth and increased group index simultaneously than the conventional scheme with only one bright resonator. The origin is attributed to the stronger bright-dark coupling and steeper dispersion in the double bright structure. The slow light characteristics are analytically demonstrated with the coupled oscillator model and verified by the full-wave simulations. The presented design rule may offer an avenue to realize broadband slow light devices. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1077-260X 1558-4542 |
DOI: | 10.1109/JSTQE.2014.2354639 |