| （英）基于中红外波段的等离子体金属孔天线 |
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| 引用本文： | 杨理,王斌,曹玲玲,叶永红. （英）基于中红外波段的等离子体金属孔天线[J]. 红外与毫米波学报, 2014, 33(4): 344-348 |
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| 作者姓名： | 杨理 王斌 曹玲玲 叶永红 |
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| 作者单位： | 南京师范大学物理科学与技术学院,江苏南京,210023 |
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| 摘 要： | 研究了周期性金属孔阵列的光学和远场辐射特性,实验发现所有样品在中红外波段都有两个透射峰,当金属孔径或者孔阵的晶格常数变大时,透过峰的中心频率发生红移.在透过率的中心频率附近,周期性的金属孔阵列表现出偶极子阵列的特性,其远场辐射特性随着孔径的减小或者孔阵列晶格常数的增大而增强.
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| 关 键 词： | 远场辐射 金属孔阵 中红外 偶极子阵列 表面等离激元 |
| 收稿时间： | 2013-04-24 |
| 修稿时间： | 2014-05-29 |
Plasmon antenna at mid-infrared made by metallic apertures |
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| YANG Li,WANG Bin,CAO Ling-Ling and YE Yong-Hong. Plasmon antenna at mid-infrared made by metallic apertures[J]. Journal of Infrared and Millimeter Waves, 2014, 33(4): 344-348 |
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| Authors: | YANG Li WANG Bin CAO Ling-Ling YE Yong-Hong |
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| Affiliation: | Jiangsu Key Lab on Opto-Eelectronic Technology, School of Physical Science and Technology, Nanjing Normal University,Jiangsu Key Lab on Opto-Eelectronic Technology, School of Physical Science and Technology, Nanjing Normal University,Jiangsu Key Lab on Opto-Eelectronic Technology, School of Physical Science and Technology, Nanjing Normal University and Nanjing Normal University |
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| Abstract: | The transmission spectra and far-field radiation patterns of periodic metallic aperture arrays are studied in mid-infrared region. We find that the samples have two transmission bands in mid-infrared region. The central positions of transmission bands red-shifts with the increase of the hole-diameter or the lattice constant. The periodic metallic aperture arrays can behave as electrical dipole arrays at the central positions of the transmission bands. The radiation intensity in far-field is strong at the two frequencies. The intensity increase with the decrease of the hole diameter or the increase of the lattice constant. |
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| Keywords: | far-field radiation metallic apertures mid-infrared dipole arrays surface plasmon polariton |
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