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A Double Split Ring Terahertz Filter on Ploymide Substrate
He Jun1; Zhang Tie-jun2; Xiong Wei3; Zhang Bo1; He Ting1; Shen Jing-ling1
Indexed BySCI
WOS IDWOS:000364503600015
AbstractMetamaterials are artificial composites that acquire their electromagnetic properties from embeded subwavelength metalic structure. With proper design of metamaterials, numerrous intriguing phenomena that not exhibited naturally can be realized, such as invisible cloaking, perfect absorption, negative refractive index and so on. In recent years, With the development of THz technology, the extensive research onTHz metamaterials devices areattracting more and more attentions. Since silicon (Si) has a higher transmittance for THz wave, it is usually selected as substrate in metamaterials structure. However, Si has the shortcomings of hardness, not easy to bend, and fragile, which limit the application of THz metamaterials. In this work, we use polyimide as the substrate to overcome the shortcomings of the Si substrate. Polyimide isflexible, smooth, suitable for conventional lithography process and the THz transmittance can compete with that of the Si. Frist, we test the THz optical properties of polymide, and get the refractive index of 1.9, and the transmittance of 80%. Second, we design a double splits ring resonators (DSRRs), and study the properties of transmission by changing the THz incidence angle and curvature of the sample. We find the resonant amplitude and resonant frequencies are unchanged. Fabricating metamaterials structures on a thin plastic substrate is a possible way to extend plane surface filtering to curved surface filtering. Third, we try to make a broadband filter by stacking two samples, and the 181GHz bandwidth at 50% has been achieved. By stacking several plane plastic metamaterial layers with different resonance responses into a multi-layer structure, a broadband THz filter can be built. The broadband filter has the advantages of simple manufacture, obvious filtering effect, which provides a new idea for the production of terahertz band filter.
KeywordThz Wave Splits Ring Resonators Ploymide Broad Band Filter
WOS Research AreaSpectroscopy
WOS SubjectSpectroscopy
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Document Type期刊论文
Affiliation1.Capital Normal Univ, Dept Phys, Beijing Key Lab Terahertz Spect & Imaging, Key Lab Terahertz Optoelect,Minist Educ, Beijing 100048, Peoples R China
2.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
3.Kuang Chi Inst Adv Technol, Shenzhen 518057, Peoples R China
Recommended Citation
GB/T 7714
He Jun,Zhang Tie-jun,Xiong Wei,et al. A Double Split Ring Terahertz Filter on Ploymide Substrate[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2015,35(11):3050-3053.
APA He Jun,Zhang Tie-jun,Xiong Wei,Zhang Bo,He Ting,&Shen Jing-ling.(2015).A Double Split Ring Terahertz Filter on Ploymide Substrate.SPECTROSCOPY AND SPECTRAL ANALYSIS,35(11),3050-3053.
MLA He Jun,et al."A Double Split Ring Terahertz Filter on Ploymide Substrate".SPECTROSCOPY AND SPECTRAL ANALYSIS 35.11(2015):3050-3053.
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