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Electrically Tunable Slow Light Using Graphene Metamaterials Highly Cited Paper

Cited 19 time in webofscience Cited 19 time in scopus
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Title
Electrically Tunable Slow Light Using Graphene Metamaterials
Author(s)
Teun-Teun Kim; Hyeon-Don Kim; Rongkuo Zhao; Sang Soon Oh; Taewoo Ha; Dong Seob Chung; Young Hee Lee; Bumki Min; Shuang Zhang
Publication Date
2018-05
Journal
ACS PHOTONICS, v.5, no.5, pp.1800 - 1807
Publisher
AMER CHEMICAL SOC
Abstract
Metamaterials with classical analogues of electromagnetically induced transparency open new avenues in photonics for realizing smaller, more efficient slow light devices without quantum approaches. However, most of the metamaterial-based slow light devices are passive, which limits their practical applications. Here, by combining diatomic metamaterials with a gated single-layer graphene, we demonstrate that the group delay of terahertz light can be dynamically controlled under a small gate voltage. Using a two coupled harmonic oscillators model, we show that this active control of group delay is made possible by an effective control of the dissipative loss of the radiative dark resonator by varying the graphene's optical conductivity. Our work may provide opportunities in the design of various applications such as compact slow light devices and ultrasensitive sensors and switches. © 2018 American Chemical Society
URI
https://pr.ibs.re.kr/handle/8788114/4517
ISSN
2330-4022
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
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