Dynamically Tunable Resonant Strength in Electromagnetically Induced Transparency (EIT) Analogue by Hybrid Metal-Graphene Metamaterials
In this paper, a novel method to realize a dynamically tunable analogue of EIT for the resonance strength rather than the resonance frequency is proposed in the terahertz spectrum. The introduced method is composed of a metal EIT-like structure, in which a distinct EIT phenomenon resulting from the...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-01-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/9/2/171 |
| _version_ | 1819102631418658816 |
|---|---|
| author | Chaode Lao Yaoyao Liang Xianjun Wang Haihua Fan Faqiang Wang Hongyun Meng Jianping Guo Hongzhan Liu Zhongchao Wei |
| author_facet | Chaode Lao Yaoyao Liang Xianjun Wang Haihua Fan Faqiang Wang Hongyun Meng Jianping Guo Hongzhan Liu Zhongchao Wei |
| author_sort | Chaode Lao |
| collection | DOAJ |
| description | In this paper, a novel method to realize a dynamically tunable analogue of EIT for the resonance strength rather than the resonance frequency is proposed in the terahertz spectrum. The introduced method is composed of a metal EIT-like structure, in which a distinct EIT phenomenon resulting from the near field coupling between bright and dark mode resonators can be obtained, as well as an integrated monolayer graphene ribbon under the dark mode resonator that can continuously adjust the resonance strength of transparency peak by changing the Fermi level of the graphene. Comparing structures that need to be modulated individually for each unit cell of the metamaterials, the proposed modulation mechanism was convenient for achieving synchronous operations for all unit cells. This work demonstrates a new platform of modulating the EIT analogue and paves the way to design terahertz functional devices which meet the needs of optical networks and terahertz communications. |
| first_indexed | 2024-12-22T01:37:38Z |
| format | Article |
| id | doaj.art-0dca4baa8eca41e9b575df7bccc02b32 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-12-22T01:37:38Z |
| publishDate | 2019-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-0dca4baa8eca41e9b575df7bccc02b322022-12-21T18:43:19ZengMDPI AGNanomaterials2079-49912019-01-019217110.3390/nano9020171nano9020171Dynamically Tunable Resonant Strength in Electromagnetically Induced Transparency (EIT) Analogue by Hybrid Metal-Graphene MetamaterialsChaode Lao0Yaoyao Liang1Xianjun Wang2Haihua Fan3Faqiang Wang4Hongyun Meng5Jianping Guo6Hongzhan Liu7Zhongchao Wei8Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, ChinaIn this paper, a novel method to realize a dynamically tunable analogue of EIT for the resonance strength rather than the resonance frequency is proposed in the terahertz spectrum. The introduced method is composed of a metal EIT-like structure, in which a distinct EIT phenomenon resulting from the near field coupling between bright and dark mode resonators can be obtained, as well as an integrated monolayer graphene ribbon under the dark mode resonator that can continuously adjust the resonance strength of transparency peak by changing the Fermi level of the graphene. Comparing structures that need to be modulated individually for each unit cell of the metamaterials, the proposed modulation mechanism was convenient for achieving synchronous operations for all unit cells. This work demonstrates a new platform of modulating the EIT analogue and paves the way to design terahertz functional devices which meet the needs of optical networks and terahertz communications.https://www.mdpi.com/2079-4991/9/2/171EIT analoguetunable EITgraphene ribbonresonance intensity |
| spellingShingle | Chaode Lao Yaoyao Liang Xianjun Wang Haihua Fan Faqiang Wang Hongyun Meng Jianping Guo Hongzhan Liu Zhongchao Wei Dynamically Tunable Resonant Strength in Electromagnetically Induced Transparency (EIT) Analogue by Hybrid Metal-Graphene Metamaterials Nanomaterials EIT analogue tunable EIT graphene ribbon resonance intensity |
| title | Dynamically Tunable Resonant Strength in Electromagnetically Induced Transparency (EIT) Analogue by Hybrid Metal-Graphene Metamaterials |
| title_full | Dynamically Tunable Resonant Strength in Electromagnetically Induced Transparency (EIT) Analogue by Hybrid Metal-Graphene Metamaterials |
| title_fullStr | Dynamically Tunable Resonant Strength in Electromagnetically Induced Transparency (EIT) Analogue by Hybrid Metal-Graphene Metamaterials |
| title_full_unstemmed | Dynamically Tunable Resonant Strength in Electromagnetically Induced Transparency (EIT) Analogue by Hybrid Metal-Graphene Metamaterials |
| title_short | Dynamically Tunable Resonant Strength in Electromagnetically Induced Transparency (EIT) Analogue by Hybrid Metal-Graphene Metamaterials |
| title_sort | dynamically tunable resonant strength in electromagnetically induced transparency eit analogue by hybrid metal graphene metamaterials |
| topic | EIT analogue tunable EIT graphene ribbon resonance intensity |
| url | https://www.mdpi.com/2079-4991/9/2/171 |
| work_keys_str_mv | AT chaodelao dynamicallytunableresonantstrengthinelectromagneticallyinducedtransparencyeitanaloguebyhybridmetalgraphenemetamaterials AT yaoyaoliang dynamicallytunableresonantstrengthinelectromagneticallyinducedtransparencyeitanaloguebyhybridmetalgraphenemetamaterials AT xianjunwang dynamicallytunableresonantstrengthinelectromagneticallyinducedtransparencyeitanaloguebyhybridmetalgraphenemetamaterials AT haihuafan dynamicallytunableresonantstrengthinelectromagneticallyinducedtransparencyeitanaloguebyhybridmetalgraphenemetamaterials AT faqiangwang dynamicallytunableresonantstrengthinelectromagneticallyinducedtransparencyeitanaloguebyhybridmetalgraphenemetamaterials AT hongyunmeng dynamicallytunableresonantstrengthinelectromagneticallyinducedtransparencyeitanaloguebyhybridmetalgraphenemetamaterials AT jianpingguo dynamicallytunableresonantstrengthinelectromagneticallyinducedtransparencyeitanaloguebyhybridmetalgraphenemetamaterials AT hongzhanliu dynamicallytunableresonantstrengthinelectromagneticallyinducedtransparencyeitanaloguebyhybridmetalgraphenemetamaterials AT zhongchaowei dynamicallytunableresonantstrengthinelectromagneticallyinducedtransparencyeitanaloguebyhybridmetalgraphenemetamaterials |