Surface plasmon-cavity hybrid state and its graphene modulation at THz frequencies-Reference-Cited by-同舟云学术

Surface plasmon-cavity hybrid state and its graphene modulation at THz frequencies

Published:2024-01-08 Issue:12 Volume:13 Page:2207-2212
ISSN:2192-8614
Container-title:Nanophotonics
language:en
Short-container-title:

Author:

Zhang Yifei¹^ORCID,Zhang Baoqing¹,Li Zhaolin¹,Feng Mingming¹,Ling Haotian¹,Zhang Xijian¹,Wang Xiaomu²,Wang Qingpu¹,Song Aimin¹³,Chen Hou-Tong⁴^ORCID

Affiliation:

1. Shandong Technology Center of Nanodevices and Integration, School of Integrated Circuits , Shandong University , Jinan , 250100 , China

2. National Laboratory of Solid State Microstructures, School of Electronic Science and Engineering , Nanjing University , Nanjing , 210023 , China

3. Department of Electrical and Electronic Engineering , University of Manchester , Manchester , M13 9PL , UK

4. Center for Integrated Nanotechnologies, Los Alamos National Laboratory , Los Alamos , NM , 87545 , USA

Abstract

Abstract Fabry–Pérot (F–P) cavity and metal hole array are classic photonic devices. Integrating F–P cavity with holey metal typically enhances interfacial reflection and dampens wave transmission. In this work, a hybrid bound surface state is found within rectangular metal holes on a silicon substrate by merging an extraordinary optical transmission (EOT) mode and a high-order F–P cavity mode both spatially and spectrally. Transmission, Q-factor, and bandwidth can be enhanced significantly with respect to the classical EOT and F–P interference by simply sweeping the cavity length. This state can provide EOT properties and ten times broader EOT bandwidth well below the effective plasma frequency of the periodic metal holes, where the metal holes typically show evanescent properties and do not support EOT in theory. Furthermore, a large modulation range of 25 % and 39 % is demonstrated with various graphene patterns for the transmittance of this hybrid state at 500 and 582 GHz, respectively.

Funder

Key Technology Research and Development Program of Shandong Province

National Key Research and Development Program of China

National Natural Science Foundation of China

Key Region Program of Shandong Province

Center for Integrated Nanotechnologies

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/nanoph-2023-0643/pdf

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