Graphene Plasmon Resonances for Electrically-Tunable Sub-Femtometer Dimensional Resolution.

Zhiyong Wu, Lei Zhang, Min Zhang, Irene Ling Li, Hong Su, Huancheng Zhao, Shuangchen Ruan, Huawei Liang

Abstract read

In one paragraph

Article in Nanomaterials (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed

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1 citing paper in PubMed.

Graphene Nanoribbon Gap Waveguides for Dispersionless and Low-Loss Propagation with Deep-Subwavelength Confinement.Nanomaterials (Basel, Switzerland) · 2021
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5 · Who and what money

Authors and funding

8 authors.

Zhiyong WuShenzhen Key Laboratory of Laser Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.

Lei ZhangKey Laboratory for Physical Electronics and Devices of the Ministry of Education and Shanxi Key Laboratory of Information Photonic Technique, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China.ORCID 0000-0002-5113-1786

Min ZhangShenzhen Key Laboratory of Laser Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.

Irene Ling LiShenzhen Key Laboratory of Laser Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.

Hong SuShenzhen Key Laboratory of Laser Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.

Huancheng ZhaoShenzhen Key Laboratory of Laser Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.

Shuangchen RuanShenzhen Key Laboratory of Laser Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.ORCID 0000-0001-7478-8054

Huawei LiangShenzhen Key Laboratory of Laser Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.ORCID 0000-0003-2508-9606

Funding

Fundamental Research Funds for the Central Universities of Xi'an Jiaotong University Z201805196Fund Project for Shenzhen Fundamental Research Programme JCYJ20180305125000525, JCYJ20190808143409787National Natural Science Foundation of China 11874270

6 · The paper itself

Abstract

A coupled graphene structure (CGS) is proposed to obtain an electrically tunable sub-femtometer (sub-fm) dimensional resolution. According to analytical and numerical investigations, the CGS can support two branches of localized surface plasmon resonances (LSPRs), which park at the dielectric spacer between two pieces of graphene. The coupled efficiencies of the odd-order modes are even four orders of magnitude higher than that of the even-order modes. In particular, a sub-fm resolution for detecting the change in the spacer thickness can be reached using the lowest order LSPR mode. The LSPR wavelength and the dimensional differential resolution can be electrically-tuned from 9.5 to 33 μm and from 4.3 to 15 nm/pm, respectively, by modifying the chemical potential of the graphene via the gate voltage. Furthermore, by replacing the graphene ribbon (GR) at the top of the CGS with multiple GRs of different widths, a resonant frequency comb in the absorption spectrum with a tunable frequency interval is generated, which can be used to detect the changes in spacer thicknesses at different locations with sub-fm resolution.

Indexed as

cavity plasmongraphenelocalized surface plasmon resonancesplasmonplasmon sensorsub-femtometer

Identifiers

PMID32679818

DOI10.3390/nano10071381

PMCPMC7407765

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