Narrow-Linewidth and High-Transmission Terahertz Bandpass Filtering by Metallic Gratings
文献类型：期刊论文
| 作者 | Song, SC（宋世超）; Sun, FH; Chen, Q（陈沁）; Zhang, YX |
| 刊名 | IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2015 |
| 卷号 | 5期号:1页码:6 |
| 关键词 | Band-pass filter guided mode resonance terahertz (THz) |
| 通讯作者 | Song, SC (宋世超) |
| 英文摘要 | Accurate spectral resolving capability is important to THz spectroscopy. So far, the THz passband filters based on meta-material and surface plasmon suffer from the broad passband. In this paper, we propose a THz filter with calculated pass band of (Delta f/f) < 0.2% together with a peak transmission above 70% and demonstrate the experimental results with (Delta f/f) < 3% limited by the measurement system. The calculated value of Delta f/f is at least one order of magnitude smaller than the previous results. The unique filtering capability was attributed to the guided-mode resonance that is generated by metallic gratings and a waveguide. Compared to the dielectric gratings, the metallic gratings with a narrow air slit are proved to effectively suppress off-resonance wavelength transmission resulting in a bandpass filtering response. In addition, a weak waveguide is found to benefit a narrow-linewidth filtering. Fabrication method of metallic gratings on membrane in a size of several cm was developed and the experimental results show reasonably good agreement with the simulation for a filter with (Delta f/f) < 3% limited by the spectral resolution and detectability of our measurement system. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.sinano.ac.cn/handle/332007/3504]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_纳米器件及相关材料研究部_陈沁团队 |
| 推荐引用方式 GB/T 7714 | Song, SC,Sun, FH,Chen, Q,et al. Narrow-Linewidth and High-Transmission Terahertz Bandpass Filtering by Metallic Gratings[J]. IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY,2015,5(1):6. |
| APA | Song, SC,Sun, FH,Chen, Q,&Zhang, YX.(2015).Narrow-Linewidth and High-Transmission Terahertz Bandpass Filtering by Metallic Gratings.IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY,5(1),6. |
| MLA | Song, SC,et al."Narrow-Linewidth and High-Transmission Terahertz Bandpass Filtering by Metallic Gratings".IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY 5.1(2015):6. |
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