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The role of localized surface plasmon in the THz transmission of metallic rectangular hole arrays
Xiong, Wei1,2,3; Yao, Jun1; Li, Wei2; Shen, Jingling4; Yao, J. (junyao@ioe.ac.cn)
Volume8564
Pages85641P
2012
Language英语
ISSN0277786X
DOI10.1117/12.999678
Indexed ByEi
Subtype会议论文
AbstractWe report on transmission enhancement and suppression in rectangular aperture arrays at terahertz range. Experiments and simulations reveal that transmission maxima and minima of metal film perforated with rectangular apertures arrays are caused by the shape resonance and the interference between surface waves respectively. To further investigate the relative contributions of shape resonance and interference between SPPs, we have examined the density of electrons whose distribution property is identified to the normal component of E-filed which clearly shows that transmission resonance stems from excitation of shape resonance at the edge of the hole. This resonance dominated by cutoff function is responsible for resonance peak at transmitted spectrum. The interference of SPPs originated at surface further enhances the resonances and gives a set of minima in the transmittance spectrum. This study contributes a better understanding of fundamental physics behind the extraordinary transmission of aperture arrays at THz range and provides a simple method for the design of THz devices. © 2012 SPIE.; We report on transmission enhancement and suppression in rectangular aperture arrays at terahertz range. Experiments and simulations reveal that transmission maxima and minima of metal film perforated with rectangular apertures arrays are caused by the shape resonance and the interference between surface waves respectively. To further investigate the relative contributions of shape resonance and interference between SPPs, we have examined the density of electrons whose distribution property is identified to the normal component of E-filed which clearly shows that transmission resonance stems from excitation of shape resonance at the edge of the hole. This resonance dominated by cutoff function is responsible for resonance peak at transmitted spectrum. The interference of SPPs originated at surface further enhances the resonances and gives a set of minima in the transmittance spectrum. This study contributes a better understanding of fundamental physics behind the extraordinary transmission of aperture arrays at THz range and provides a simple method for the design of THz devices. © 2012 SPIE.
Conference NameProceedings of SPIE: Nanophotonics and Micro/Nano Optics
Conference Date2012
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Document Type会议论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/7892
Collection微细加工光学技术国家重点实验室(开放室)
Corresponding AuthorYao, J. (junyao@ioe.ac.cn)
Affiliation1. State Key Lab of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, 610209, China
2. School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu, 610054, China
3. Graduate University, Chinese Academy of Sciences, Beijing, 100049, China
4. Beijing Key Lab for Terahertz Spectroscopy and Imaging, Capital Normal University, Beijing, 100048, China
Recommended Citation
GB/T 7714
Xiong, Wei,Yao, Jun,Li, Wei,et al. The role of localized surface plasmon in the THz transmission of metallic rectangular hole arrays[C],2012:85641P.
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