Terahertz Focusing Enhancement for Graphene-Based Tunable Metalens

Jianzhou Huang; Bin Hu; Guocui Wang; Weiguang Liu; Zongyuan Wang; Yan Zhang; Juan Liu

doi:10.1117/12.2618749

Terahertz Focusing Enhancement for Graphene-Based Tunable Metalens

Jianzhou Huang^*, Bin Hu, Guocui Wang, Weiguang Liu, Zongyuan Wang, Yan Zhang, Juan Liu

^*此作品的通讯作者

光电学院

科研成果: 书/报告/会议事项章节 › 会议稿件 › 同行评审

1 引用（Scopus）

摘要

We propose a type of hybrid structure metalens composed of a graphene-loaded metallic metasurface sandwiched by two mutually orthogonal gratings, which can work in transmission modes for dynamic terahertz wavefront manipulation with tunability and enhanced focusing efficiency. Experimental results show that due to the multi-reflection between the metasurface layer and the grating layers, the focusing efficiency is enhanced by 1.8 times, and the focal length of the metalens is increased by 0.61mm by increasing the applied gate voltage on the graphene from 0V to 1.4V. We hope the proposed structure may open a new avenue for reconfigurable THz metasurfaces with high efficiencies.

源语言	英语
主期刊名	2021 International Conference on Optical Instruments and Technology
主期刊副标题	Optical Systems, Optoelectronic Instruments, Novel Display, and Imaging Technology
编辑	Juan Liu, Baohua Jia, Liangcai Cao, Xincheng Yao, Yongtian Wang, Takanori Nomura
出版商	SPIE
ISBN（电子版）	9781510655591
DOI	https://doi.org/10.1117/12.2618749
出版状态	已出版 - 2022
活动	2021 International Conference on Optical Instruments and Technology: Optical Systems, Optoelectronic Instruments, Novel Display, and Imaging Technology - Virtual, Online, 中国期限: 8 4月 2022 → 10 4月 2022

出版系列

姓名	Proceedings of SPIE - The International Society for Optical Engineering
卷	12277
ISSN（印刷版）	0277-786X
ISSN（电子版）	1996-756X

会议

会议	2021 International Conference on Optical Instruments and Technology: Optical Systems, Optoelectronic Instruments, Novel Display, and Imaging Technology
国家/地区	中国
市	Virtual, Online
时期	8/04/22 → 10/04/22

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10.1117/12.2618749

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Huang, J., Hu, B., Wang, G., Liu, W., Wang, Z., Zhang, Y., & Liu, J. (2022). Terahertz Focusing Enhancement for Graphene-Based Tunable Metalens. 在 J. Liu, B. Jia, L. Cao, X. Yao, Y. Wang, & T. Nomura (编辑), 2021 International Conference on Optical Instruments and Technology: Optical Systems, Optoelectronic Instruments, Novel Display, and Imaging Technology 文章 1227714 (Proceedings of SPIE - The International Society for Optical Engineering; 卷 12277). SPIE. https://doi.org/10.1117/12.2618749

Huang, Jianzhou ; Hu, Bin ; Wang, Guocui 等. / Terahertz Focusing Enhancement for Graphene-Based Tunable Metalens. 2021 International Conference on Optical Instruments and Technology: Optical Systems, Optoelectronic Instruments, Novel Display, and Imaging Technology. 编辑 / Juan Liu ; Baohua Jia ; Liangcai Cao ; Xincheng Yao ; Yongtian Wang ; Takanori Nomura. SPIE, 2022. (Proceedings of SPIE - The International Society for Optical Engineering).

@inproceedings{222194315e514a00ba27af1c2e5ba68e,

title = "Terahertz Focusing Enhancement for Graphene-Based Tunable Metalens",

abstract = "We propose a type of hybrid structure metalens composed of a graphene-loaded metallic metasurface sandwiched by two mutually orthogonal gratings, which can work in transmission modes for dynamic terahertz wavefront manipulation with tunability and enhanced focusing efficiency. Experimental results show that due to the multi-reflection between the metasurface layer and the grating layers, the focusing efficiency is enhanced by 1.8 times, and the focal length of the metalens is increased by 0.61mm by increasing the applied gate voltage on the graphene from 0V to 1.4V. We hope the proposed structure may open a new avenue for reconfigurable THz metasurfaces with high efficiencies.",

keywords = "Electrical Tunability, Electrical Tunability, Electrical Tunability, Enhanced Focusing Efficiency, Graphene, Metasurface, Terahertz, Ultra-small Thickness",

author = "Jianzhou Huang and Bin Hu and Guocui Wang and Weiguang Liu and Zongyuan Wang and Yan Zhang and Juan Liu",

note = "Publisher Copyright: {\textcopyright} 2022 SPIE.; 2021 International Conference on Optical Instruments and Technology: Optical Systems, Optoelectronic Instruments, Novel Display, and Imaging Technology ; Conference date: 08-04-2022 Through 10-04-2022",

year = "2022",

doi = "10.1117/12.2618749",

language = "English",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

editor = "Juan Liu and Baohua Jia and Liangcai Cao and Xincheng Yao and Yongtian Wang and Takanori Nomura",

booktitle = "2021 International Conference on Optical Instruments and Technology",

address = "United States",

}

Huang, J, Hu, B, Wang, G, Liu, W, Wang, Z, Zhang, Y & Liu, J 2022, Terahertz Focusing Enhancement for Graphene-Based Tunable Metalens. 在 J Liu, B Jia, L Cao, X Yao, Y Wang & T Nomura (编辑), 2021 International Conference on Optical Instruments and Technology: Optical Systems, Optoelectronic Instruments, Novel Display, and Imaging Technology., 1227714, Proceedings of SPIE - The International Society for Optical Engineering, 卷 12277, SPIE, 2021 International Conference on Optical Instruments and Technology: Optical Systems, Optoelectronic Instruments, Novel Display, and Imaging Technology, Virtual, Online, 中国, 8/04/22. https://doi.org/10.1117/12.2618749

Terahertz Focusing Enhancement for Graphene-Based Tunable Metalens. / Huang, Jianzhou; Hu, Bin; Wang, Guocui 等.
2021 International Conference on Optical Instruments and Technology: Optical Systems, Optoelectronic Instruments, Novel Display, and Imaging Technology. 编辑 / Juan Liu; Baohua Jia; Liangcai Cao; Xincheng Yao; Yongtian Wang; Takanori Nomura. SPIE, 2022. 1227714 (Proceedings of SPIE - The International Society for Optical Engineering; 卷 12277).

科研成果: 书/报告/会议事项章节 › 会议稿件 › 同行评审

TY - GEN

T1 - Terahertz Focusing Enhancement for Graphene-Based Tunable Metalens

AU - Huang, Jianzhou

AU - Hu, Bin

AU - Wang, Guocui

AU - Liu, Weiguang

AU - Wang, Zongyuan

AU - Zhang, Yan

AU - Liu, Juan

PY - 2022

Y1 - 2022

N2 - We propose a type of hybrid structure metalens composed of a graphene-loaded metallic metasurface sandwiched by two mutually orthogonal gratings, which can work in transmission modes for dynamic terahertz wavefront manipulation with tunability and enhanced focusing efficiency. Experimental results show that due to the multi-reflection between the metasurface layer and the grating layers, the focusing efficiency is enhanced by 1.8 times, and the focal length of the metalens is increased by 0.61mm by increasing the applied gate voltage on the graphene from 0V to 1.4V. We hope the proposed structure may open a new avenue for reconfigurable THz metasurfaces with high efficiencies.

AB - We propose a type of hybrid structure metalens composed of a graphene-loaded metallic metasurface sandwiched by two mutually orthogonal gratings, which can work in transmission modes for dynamic terahertz wavefront manipulation with tunability and enhanced focusing efficiency. Experimental results show that due to the multi-reflection between the metasurface layer and the grating layers, the focusing efficiency is enhanced by 1.8 times, and the focal length of the metalens is increased by 0.61mm by increasing the applied gate voltage on the graphene from 0V to 1.4V. We hope the proposed structure may open a new avenue for reconfigurable THz metasurfaces with high efficiencies.

KW - Electrical Tunability

KW - Enhanced Focusing Efficiency

KW - Graphene

KW - Metasurface

KW - Terahertz

KW - Ultra-small Thickness

UR - http://www.scopus.com/inward/record.url?scp=85137042691&partnerID=8YFLogxK

U2 - 10.1117/12.2618749

DO - 10.1117/12.2618749

M3 - Conference contribution

AN - SCOPUS:85137042691

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - 2021 International Conference on Optical Instruments and Technology

A2 - Liu, Juan

A2 - Jia, Baohua

A2 - Cao, Liangcai

A2 - Yao, Xincheng

A2 - Wang, Yongtian

A2 - Nomura, Takanori

PB - SPIE

T2 - 2021 International Conference on Optical Instruments and Technology: Optical Systems, Optoelectronic Instruments, Novel Display, and Imaging Technology

Y2 - 8 April 2022 through 10 April 2022

ER -

Huang J, Hu B, Wang G, Liu W, Wang Z, Zhang Y 等. Terahertz Focusing Enhancement for Graphene-Based Tunable Metalens. 在 Liu J, Jia B, Cao L, Yao X, Wang Y, Nomura T, 编辑, 2021 International Conference on Optical Instruments and Technology: Optical Systems, Optoelectronic Instruments, Novel Display, and Imaging Technology. SPIE. 2022. 1227714. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2618749

Terahertz Focusing Enhancement for Graphene-Based Tunable Metalens

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