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Proceedings Paper

Surface plasmon polaritons excited over sub-wavelength aluminum structures by terahertz radiation
Author(s): Yaping Zhu; Weijun Li; Jun Luo; Ying Yuan; Yu Lei; Qing Tong; Xinyu Zhang; Changsheng Xie
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Paper Abstract

A two-layered construction composed of micro-nano-structures is fabricated to investigate the key properties of surface plasmon polaritons (SPPs) in the range of terahertz wave. The construction is mainly two layered micro-nano-structures (MNSs), and the utilized substrates are silicon materials currently. One silicon substrate is covered by a layer of indium tin oxide (ITO). Another silicon substrate is sputtered by a thin aluminum film, which is further patterned to shape functioned sub-wavelength aluminum structures (SWASs). Both aluminum film and ITO film are coupled to form a micro-cavity using micro-spheres spacers. The typical terahertz (THz) transmission of the construction is measured. The experimental results demonstrate that some extraordinary transmission peaks called the extraordinary optical transmission (EOT) appear in THz transmittance spectrum. The analysis results indicate that THz radiation excites effectively SPPs over the SWASs.

Paper Details

Date Published: 17 December 2015
PDF: 6 pages
Proc. SPIE 9811, MIPPR 2015: Multispectral Image Acquisition, Processing, and Analysis, 981106 (17 December 2015); doi: 10.1117/12.2203720
Show Author Affiliations
Yaping Zhu, Huazhong Univ. of Science and Technology (China)
Weijun Li, Huazhong Univ. of Science and Technology (China)
Jun Luo, Huazhong Univ. of Science and Technology (China)
Huazhong Agricultural Univ. (China)
Ying Yuan, Huazhong Univ. of Science and Technology (China)
Yu Lei, Huazhong Univ. of Science and Technology (China)
Shijiazhuang Tiedao Univ. (China)
Qing Tong, Huazhong Univ. of Science and Technology (China)
Xinyu Zhang, Huazhong Univ. of Science and Technology (China)
Changsheng Xie, Wuhan National Lab. for Optoelectronics (China)


Published in SPIE Proceedings Vol. 9811:
MIPPR 2015: Multispectral Image Acquisition, Processing, and Analysis
Jinxue Wang; Zhiguo Cao; Jayaram K. Udupa; Henri Maître, Editor(s)

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