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Tunable optical analog to electromagnetically induced transparency in graphene-ring resonators system.

ABSTRACT: The analogue of electromagnetically induced transparency in optical ways has shown great potential in optical delay and quantum-information technology due to its flexible design and easy implementation. The chief drawback for these devices is the bad tunability. Here we demonstrate a tunable optical transparency system formed by graphene-silicon microrings which could control the transparent window by electro-optical means. The device consists of cascaded coupled ring resonators and a graphene/graphene capacitor which integrated on one of the rings. By tuning the Fermi level of the graphene sheets, we can modulate the round-trip ring loss so that the transparency window can be dynamically tuned. The results provide a new method for the manipulation and transmission of light in highly integrated optical circuits and quantum information storage devices.

SUBMITTER: Wang Y

PROVIDER: S-EPMC5151055 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature

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Tunable optical analog to electromagnetically induced transparency in graphene-ring resonators system.

Wang Yonghua Y Xue Chenyang C Zhang Zengxing Z Zheng Hua H Zhang Wendong W Yan Shubin S

Scientific reports 20161212

The analogue of electromagnetically induced transparency in optical ways has shown great potential in optical delay and quantum-information technology due to its flexible design and easy implementation. The chief drawback for these devices is the bad tunability. Here we demonstrate a tunable optical transparency system formed by graphene-silicon microrings which could control the transparent window by electro-optical means. The device consists of cascaded coupled ring resonators and a graphene/g ...[more]

PMID: 27941895

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