• Chinese Optics Letters
  • Vol. 18, Issue 9, 092402 (2020)
Hao Sun1, Yuhua Tang1, Yuze Hu2, Jie You3, Hengzhu Liu1, and Xin Zheng3、*
Author Affiliations
  • 1College of Computer, National University of Defense Technology, Changsha 410073, China
  • 2College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China
  • 3National Innovation Institute of Defense Technology, Beijing 100010, China
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    DOI: 10.3788/COL202018.092402 Cite this Article Set citation alerts
    Hao Sun, Yuhua Tang, Yuze Hu, Jie You, Hengzhu Liu, Xin Zheng. Active formatting modulation of electromagnetically induced transparency in metamaterials[J]. Chinese Optics Letters, 2020, 18(9): 092402 Copy Citation Text show less

    Abstract

    We experimentally demonstrate for the first time an active all-optical ultrafast modulation of electromagnetically induced transparency-like effect in a hybrid device of sapphire/Si/metamaterial. From numerical simulations, it can be deducted that the tuning process is attributed to the coupling between the dark mode existing in split-ring resonators and the bright mode existing in cut wire resonators. The transmission amplitude modulation is accompanied by the slow-light effect. In addition, the ultrafast formation process is measured to be as fast as 2 ps. This work should make an important contribution to novel chip-scale photonic devices and terahertz communications.
    T(t)T0T0=A0+A1exp[(tt0)/τ],(1)

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    Hao Sun, Yuhua Tang, Yuze Hu, Jie You, Hengzhu Liu, Xin Zheng. Active formatting modulation of electromagnetically induced transparency in metamaterials[J]. Chinese Optics Letters, 2020, 18(9): 092402
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