Literature DB >> 25483819

Optimizing broadband terahertz modulation with hybrid graphene/metasurface structures.

S-F Shi1, B Zeng, H-L Han, X Hong, H-Z Tsai, H S Jung, A Zettl, M F Crommie, F Wang.   

Abstract

We demonstrate efficient terahertz (THz) modulation by coupling graphene strongly with a broadband THz metasurface device. This THz metasurface, made of periodic gold slit arrays, shows near unity broadband transmission, which arises from coherent radiation of the enhanced local-field in the slits. Utilizing graphene as an active load with tunable conductivity, we can significantly modify the local-field enhancement and strongly modulate the THz wave transmission. This hybrid device also provides a new platform for future nonlinear THz spectroscopy study of graphene.

Entities:  

Keywords:  Metasurface; graphene; local-field; modulation; terahertz

Year:  2014        PMID： 25483819     DOI： 10.1021/nl503670d

Source DB:  PubMed          Journal:  Nano Lett        ISSN： 1530-6984            Impact factor:   11.189


  7 in total

1.  Helicity multiplexed broadband metasurface holograms.

Authors:  Dandan Wen; Fuyong Yue; Guixin Li; Guoxing Zheng; Kinlong Chan; Shumei Chen; Ming Chen; King Fai Li; Polis Wing Han Wong; Kok Wai Cheah; Edwin Yue Bun Pun; Shuang Zhang; Xianzhong Chen
Journal:  Nat Commun       Date:  2015-09-10       Impact factor: 14.919

2.  Microwave Study of Field-Effect Devices Based on Graphene/Aluminum Nitride/Graphene Structures.

Authors:  Mohammad Adabi; Johannes Lischner; Stephen M Hanham; Andrei P Mihai; Olena Shaforost; Rui Wang; Ling Hao; Peter K Petrov; Norbert Klein
Journal:  Sci Rep       Date:  2017-03-09       Impact factor: 4.379

3.  Strong Terahertz Absorption of Monolayer Graphene Embedded into a Microcavity.

Authors:  Xuguang Guo; Lejie Xue; Zhenxing Yang; Mengjian Xu; Yiming Zhu; Dixiang Shao; Zhanglong Fu; Zhiyong Tan; Chang Wang; Juncheng Cao; Chao Zhang
Journal:  Nanomaterials (Basel)       Date:  2021-02-07       Impact factor: 5.076

4.  Programmable VO2 metasurface for terahertz wave beam steering.

Authors:  Daquan Yang; Weiguang Wang; Erpeng Lv; Haiming Wang; Bingchao Liu; Yanzhao Hou; Jin-Hui Chen
Journal:  iScience       Date:  2022-07-31

5.  Graphene-based terahertz bias-driven negative-conductivity metasurface.

Authors:  Guibin Li; Guocui Wang; Tingting Yang; Yan Zhang; Jingling Shen; Bo Zhang
Journal:  Nanoscale Adv       Date:  2022-07-01

6.  Terahertz Modulator based on Metamaterials integrated with Metal-Semiconductor-Metal Varactors.

Authors:  Muhammad Tayyab Nouman; Hyun-Woong Kim; Jeong Min Woo; Ji Hyun Hwang; Dongju Kim; Jae-Hyung Jang
Journal:  Sci Rep       Date:  2016-05-19       Impact factor: 4.379

7.  Sensitive Terahertz Detection and Imaging Driven by the Photothermoelectric Effect in Ultrashort-Channel Black Phosphorus Devices.

Authors:  Wanlong Guo; Zhuo Dong; Yijun Xu; Changlong Liu; Dacheng Wei; Libo Zhang; Xinyao Shi; Cheng Guo; Huang Xu; Gang Chen; Lin Wang; Kai Zhang; Xiaoshuang Chen; Wei Lu
Journal:  Adv Sci (Weinh)       Date:  2020-01-19       Impact factor: 16.806
  7 in total

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