In conventional plasmonic media and plasmonic metamaterials, such as metallic wire meshes, a longitudinal mode of an electromagnetic wave manifests itself in frequency overlapping transverse modes, which impedes clear observation of longitudinal-mode-specific physical effects. Through interlacing two sets of wire meshes, an ideal band for the longitudinal mode is achieved ranging from zero frequency to plasma frequency, where transverse modes are completely forbidden. The unique spectral separation of modes facilitates the observation of pure longitudinal modes and related plasmonic effects in a bulk medium. We report the microwave experiment of anomalous optical transmission, induced solely by electromagnetic longitudinal mode resonance, below the plasma frequency in such a wire mesh medium.
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10 July 2023
Research Article|
July 10 2023
Experimental observation of sub-radiant longitudinal mode and anomalous optical transmission in metallic wire meshes
Special Collection:
Fundamentals and Applications of Metamaterials: Breaking the Limits
Weijie Dong;
Weijie Dong
(Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Supervision, Writing – original draft, Writing – review & editing)
1
School of Physical Science and Technology & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University
, 1 Shizi Street, Suzhou 215006, China
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Xiaoxi Zhou
;
Xiaoxi Zhou
(Data curation, Formal analysis, Investigation, Methodology, Writing – review & editing)
1
School of Physical Science and Technology & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University
, 1 Shizi Street, Suzhou 215006, China
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Xinyang Pan;
Xinyang Pan
(Formal analysis, Investigation, Methodology)
1
School of Physical Science and Technology & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University
, 1 Shizi Street, Suzhou 215006, China
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Haitao Li
;
Haitao Li
(Formal analysis, Investigation, Methodology)
1
School of Physical Science and Technology & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University
, 1 Shizi Street, Suzhou 215006, China
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Gang Wang
;
Gang Wang
(Formal analysis, Investigation, Methodology)
1
School of Physical Science and Technology & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University
, 1 Shizi Street, Suzhou 215006, China
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Yadong Xu
;
Yadong Xu
a)
(Conceptualization, Formal analysis, Funding acquisition, Investigation, Methodology, Supervision, Writing – original draft, Writing – review & editing)
1
School of Physical Science and Technology & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University
, 1 Shizi Street, Suzhou 215006, China
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Bo Hou
Bo Hou
a)
(Conceptualization, Formal analysis, Funding acquisition, Investigation, Methodology, Supervision, Writing – original draft, Writing – review & editing)
2
Wave Functional Metamaterial Research Facility, The Hong Kong University of Science and Technology (Guangzhou)
, 1 Duxue Road, Guangzhou 511400, China
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Note: This paper is part of the APL Special Collection on Fundamentals and Applications of Metamaterials: Breaking the Limits.
Appl. Phys. Lett. 123, 021701 (2023)
Article history
Received:
March 20 2023
Accepted:
June 26 2023
Citation
Weijie Dong, Xiaoxi Zhou, Xinyang Pan, Haitao Li, Gang Wang, Yadong Xu, Bo Hou; Experimental observation of sub-radiant longitudinal mode and anomalous optical transmission in metallic wire meshes. Appl. Phys. Lett. 10 July 2023; 123 (2): 021701. https://doi.org/10.1063/5.0151303
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