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Integrated terahertz generator-manipulators using epsilon-near-zero-hybrid nonlinear metasurfaces

Integrated terahertz generator-manipulators using epsilon-near-zero-hybrid nonlinear metasurfaces
Integrated terahertz generator-manipulators using epsilon-near-zero-hybrid nonlinear metasurfaces

In terahertz (THz) technologies, generation and manipulation of THz waves are two key processes usually implemented by different device modules. Integrating THz generation and manipulation into a single compact device will advance the applications of THz technologies in various fields. Here, we demonstrate a hybrid nonlinear plasmonic metasurface incorporating an epsilon-near-zero (ENZ) indium tin oxide (ITO) layer to seamlessly combine efficient generation and manipulation of THz waves across a wide frequency band. The coupling between the plasmonic resonance of the metasurface and the ENZ mode of the ITO thin film enhances the THz conversion efficiency by more than 4 orders of magnitude. Meanwhile, such a hybrid device is capable of shaping the polarization and wavefront of the emitted THz beam via the engineered nonlinear Pancharatnam-Berry (PB) phases of the plasmonic meta-atoms. The presented hybrid nonlinear metasurface opens a new avenue toward miniaturized integrated THz devices and systems with advanced functionalities.

epsilon-near-zero, integrated generator-manipulator, metasurface, nonlinear Pancharatnam-Berry phase, terahertz
1530-6984
7699-7707
Lu, Yongchang
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Feng, Xi
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Wang, Qingwei
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Zhang, Xueqian
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Fang, Ming
ec5dc2a5-5022-4310-8fca-1fcf7f1fd159
Sha, Wei E. I.
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Huang, Zhixiang
472c2042-9d64-4d7b-a9e5-d1d795c6b01f
Xu, Quan
b97a36eb-cace-496b-b45e-90cf42a110d8
Niu, Li
e5f9bc62-e52b-486a-8c91-2b9c86601ebb
Chen, Xieyu
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Ouyang, Chunmei
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Yang, Yuanmu
08dd981a-ec49-4f45-8f65-addf71dbd147
Zhang, Xixiang
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Plum, Eric
50761a26-2982-40df-9153-7aecc4226eb5
Zhang, Shuang
af2e2fae-3077-40b5-863b-22a45d691957
Han, Jiaguang
4591e2ce-9804-45f2-907a-a915386b3922
Zhang, Weili
e7aadbd4-230f-4a39-8b06-9aaef4183de0
Lu, Yongchang
5e886530-46bd-4744-9904-3dbb81ace059
Feng, Xi
bc46c398-b7a0-462b-93b5-d98191e3a565
Wang, Qingwei
d861d36f-45d3-4ca6-8e5e-a6930bfd12d8
Zhang, Xueqian
94e50528-12a0-414a-b789-423815daa8e6
Fang, Ming
ec5dc2a5-5022-4310-8fca-1fcf7f1fd159
Sha, Wei E. I.
03d482ff-151b-446a-8785-714e3dac21e4
Huang, Zhixiang
472c2042-9d64-4d7b-a9e5-d1d795c6b01f
Xu, Quan
b97a36eb-cace-496b-b45e-90cf42a110d8
Niu, Li
e5f9bc62-e52b-486a-8c91-2b9c86601ebb
Chen, Xieyu
3f8dacf6-0ba1-44b9-8062-eba039871039
Ouyang, Chunmei
8d9099d9-40b8-4e85-beb4-f1ea69121456
Yang, Yuanmu
08dd981a-ec49-4f45-8f65-addf71dbd147
Zhang, Xixiang
52c0bdb8-66af-410f-b91b-181400b2c5b4
Plum, Eric
50761a26-2982-40df-9153-7aecc4226eb5
Zhang, Shuang
af2e2fae-3077-40b5-863b-22a45d691957
Han, Jiaguang
4591e2ce-9804-45f2-907a-a915386b3922
Zhang, Weili
e7aadbd4-230f-4a39-8b06-9aaef4183de0

Lu, Yongchang, Feng, Xi, Wang, Qingwei, Zhang, Xueqian, Fang, Ming, Sha, Wei E. I., Huang, Zhixiang, Xu, Quan, Niu, Li, Chen, Xieyu, Ouyang, Chunmei, Yang, Yuanmu, Zhang, Xixiang, Plum, Eric, Zhang, Shuang, Han, Jiaguang and Zhang, Weili (2021) Integrated terahertz generator-manipulators using epsilon-near-zero-hybrid nonlinear metasurfaces. Nano Letters, 21 (18), 7699-7707. (doi:10.1021/acs.nanolett.1c02372).

Record type: Article

Abstract

In terahertz (THz) technologies, generation and manipulation of THz waves are two key processes usually implemented by different device modules. Integrating THz generation and manipulation into a single compact device will advance the applications of THz technologies in various fields. Here, we demonstrate a hybrid nonlinear plasmonic metasurface incorporating an epsilon-near-zero (ENZ) indium tin oxide (ITO) layer to seamlessly combine efficient generation and manipulation of THz waves across a wide frequency band. The coupling between the plasmonic resonance of the metasurface and the ENZ mode of the ITO thin film enhances the THz conversion efficiency by more than 4 orders of magnitude. Meanwhile, such a hybrid device is capable of shaping the polarization and wavefront of the emitted THz beam via the engineered nonlinear Pancharatnam-Berry (PB) phases of the plasmonic meta-atoms. The presented hybrid nonlinear metasurface opens a new avenue toward miniaturized integrated THz devices and systems with advanced functionalities.

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Integrated terahertz generator-manipulator - accepted - Accepted Manuscript
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More information

Accepted/In Press date: 27 August 2021
Published date: 9 September 2021
Additional Information: Funding Information: This work is supported by the National Key Research and Development Program of China (Grant 2017YFA0701004); the National Natural Science Foundation of China (Grants 61735012, 62025504, 62075158, 11974259, 61875150, 61935015, 62005193, 61901001, U20A20164, 61971001, 61975177, and 62135008); the Tianjin Municipal Fund for Distinguished Young Scholars (18JCJQJC45600); the UK’s Engineering and Physical Sciences Research Council (Grants EP/M009122/1 and EP/T02643 X/1); the Research Grants Council of Hong Kong (AoE/P-701/20). The authors acknowledge the High-performance Computing Platform of Anhui University for providing computing resources. Following a period of embargo, the data from this paper will be available from the University of Southampton ePrints research repository: https://doi.org/10.5258/SOTON/D1948 .
Keywords: epsilon-near-zero, integrated generator-manipulator, metasurface, nonlinear Pancharatnam-Berry phase, terahertz

Identifiers

Local EPrints ID: 452165
URI: http://eprints.soton.ac.uk/id/eprint/452165
ISSN: 1530-6984
PURE UUID: d16c135d-5c9e-40d3-8cbe-b6555df162fe
ORCID for Eric Plum: ORCID iD orcid.org/0000-0002-1552-1840

Catalogue record

Date deposited: 26 Nov 2021 17:33
Last modified: 06 Jun 2024 04:11

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Contributors

Author: Yongchang Lu
Author: Xi Feng
Author: Qingwei Wang
Author: Xueqian Zhang
Author: Ming Fang
Author: Wei E. I. Sha
Author: Zhixiang Huang
Author: Quan Xu
Author: Li Niu
Author: Xieyu Chen
Author: Chunmei Ouyang
Author: Yuanmu Yang
Author: Xixiang Zhang
Author: Eric Plum ORCID iD
Author: Shuang Zhang
Author: Jiaguang Han
Author: Weili Zhang

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