Improved Broadband Near-Unity Light Transparency of a Metal Layer With Film-Coupled Dual Plasmonic Arrays
We report improved light transparency over a broad bandwidth in a metal-layered structure with two film-coupled subwavelength non-close-packed plasmonic arrays. Through the introduction of dual ultrathin dielectric spacing layers between the metal layer and the double plasmonic disk arrays, coupling...
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| Format: | Article |
| Language: | English |
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IEEE
2013-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/6672007/ |
| _version_ | 1818370028614975488 |
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| author | Gui-qiang Liu Zheng-qi Liu Ying Hu Xiang-nan Zhang Zheng-jie Cai Yuan-hao Chen Hai-Qing Zhou |
| author_facet | Gui-qiang Liu Zheng-qi Liu Ying Hu Xiang-nan Zhang Zheng-jie Cai Yuan-hao Chen Hai-Qing Zhou |
| author_sort | Gui-qiang Liu |
| collection | DOAJ |
| description | We report improved light transparency over a broad bandwidth in a metal-layered structure with two film-coupled subwavelength non-close-packed plasmonic arrays. Through the introduction of dual ultrathin dielectric spacing layers between the metal layer and the double plasmonic disk arrays, coupling of the input and output effects of light is efficiently enhanced through strong near-field localized plasmon resonances between adjacent plasmonic disks and the near-field plasmon cavity mode in the gap between the double plasmonic arrays and the metal layer. A broad bandwidth of 300 nm with near-unity light transmittance (above 90%) in the optical regime is achieved through the localized plasmon resonances and the symmetrical structure used here. The transparency of this structure is polarization independent and incident angle insensitive, and can be tuned by varying the structure parameters and the dielectric environment. In addition, the period of the plasmonic arrays and the thickness of the nanometer-separated plasmonic structure are less than λ /20 and λ/8, respectively. These values suggest that the proposed structure may have potential applications in deep subwavelength optoelectronic devices, including broadband optically transparent electrodes, highly integrated light input and output components, and plasmonic filters. |
| first_indexed | 2024-12-13T23:33:13Z |
| format | Article |
| id | doaj.art-73002a8450164845a0d61609520db24f |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-13T23:33:13Z |
| publishDate | 2013-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-73002a8450164845a0d61609520db24f2022-12-21T23:27:22ZengIEEEIEEE Photonics Journal1943-06552013-01-01564809011480901110.1109/JPHOT.2013.22923696672007Improved Broadband Near-Unity Light Transparency of a Metal Layer With Film-Coupled Dual Plasmonic ArraysGui-qiang Liu0Zheng-qi Liu1Ying Hu2Xiang-nan Zhang3Zheng-jie Cai4Yuan-hao Chen5Hai-Qing Zhou6<formula formulatype="inline"><tex Notation="TeX">$^{1}$</tex></formula> Laboratory of Nanomaterials and Sensors, College of Physics and Communication Electronics, Jiangxi Normal University , Nanchang, ChinaLaboratory of Nanomaterials and Sensors, College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang, ChinaLaboratory of Nanomaterials and Sensors, College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang, ChinaLaboratory of Nanomaterials and Sensors, College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang, ChinaLaboratory of Nanomaterials and Sensors, College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang, ChinaLaboratory of Nanomaterials and Sensors, College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang, China<formula formulatype="inline"><tex Notation="TeX">$^{2}$</tex></formula> Department of Chemistry, Rice University, Houston, TX, USAWe report improved light transparency over a broad bandwidth in a metal-layered structure with two film-coupled subwavelength non-close-packed plasmonic arrays. Through the introduction of dual ultrathin dielectric spacing layers between the metal layer and the double plasmonic disk arrays, coupling of the input and output effects of light is efficiently enhanced through strong near-field localized plasmon resonances between adjacent plasmonic disks and the near-field plasmon cavity mode in the gap between the double plasmonic arrays and the metal layer. A broad bandwidth of 300 nm with near-unity light transmittance (above 90%) in the optical regime is achieved through the localized plasmon resonances and the symmetrical structure used here. The transparency of this structure is polarization independent and incident angle insensitive, and can be tuned by varying the structure parameters and the dielectric environment. In addition, the period of the plasmonic arrays and the thickness of the nanometer-separated plasmonic structure are less than λ /20 and λ/8, respectively. These values suggest that the proposed structure may have potential applications in deep subwavelength optoelectronic devices, including broadband optically transparent electrodes, highly integrated light input and output components, and plasmonic filters.https://ieeexplore.ieee.org/document/6672007/Surface plasmonplasmonic arraysubwavelength metal structureoptical transparencyhybridization mode |
| spellingShingle | Gui-qiang Liu Zheng-qi Liu Ying Hu Xiang-nan Zhang Zheng-jie Cai Yuan-hao Chen Hai-Qing Zhou Improved Broadband Near-Unity Light Transparency of a Metal Layer With Film-Coupled Dual Plasmonic Arrays IEEE Photonics Journal Surface plasmon plasmonic array subwavelength metal structure optical transparency hybridization mode |
| title | Improved Broadband Near-Unity Light Transparency of a Metal Layer With Film-Coupled Dual Plasmonic Arrays |
| title_full | Improved Broadband Near-Unity Light Transparency of a Metal Layer With Film-Coupled Dual Plasmonic Arrays |
| title_fullStr | Improved Broadband Near-Unity Light Transparency of a Metal Layer With Film-Coupled Dual Plasmonic Arrays |
| title_full_unstemmed | Improved Broadband Near-Unity Light Transparency of a Metal Layer With Film-Coupled Dual Plasmonic Arrays |
| title_short | Improved Broadband Near-Unity Light Transparency of a Metal Layer With Film-Coupled Dual Plasmonic Arrays |
| title_sort | improved broadband near unity light transparency of a metal layer with film coupled dual plasmonic arrays |
| topic | Surface plasmon plasmonic array subwavelength metal structure optical transparency hybridization mode |
| url | https://ieeexplore.ieee.org/document/6672007/ |
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