Optical and Electrical Characterization of Pure PMMA for Terahertz Wide-band Metamaterial Absorbers
文献类型：期刊论文
| 作者 | Shi, Zaiying; Song, Lixin; Zhang, Tao |
| 刊名 | JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES
 |
| 出版日期 | 2019 |
| 卷号 | 40期号:1页码:80 |
| 关键词 | PMMA Terahertz Permittivity Reflectance Metamaterial absorber |
| ISSN号 | 1866-6892 |
| DOI | 10.1007/s10762-018-0553-8 |
| 文献子类 | Article |
| 英文摘要 | The characteristics of relative permittivity and reflectance for poly (methyl methacrylate) (PMMA) films prepared by spin-coating were investigated and an excellent wideband terahertz (THz) metamaterial absorber (MA) had been fabricated by employing PMMA film as the dielectric layer. XRD and AFM indicated that all the PMMA films with thicknesses from 11 to 17m were amorphous and extremely smooth with roughness about 0.203nm. Raman results demonstrated that vibration strength of the same covalent bonds tends to be consistent with an increase in film thickness. The dual beam laser interferometer (DBLI) was employed to study the influence of applied frequency and thickness on the relative permittivity, and the results exhibited dielectric constants increased from 2.88 to 4.04 with the thickness increasing from 9 to 14m. And the dielectric constants for PMMA films with a certain thickness (8m) gradually declined when the applied frequency increased from 100 to 10(5)Hz; besides, the dielectric constant in THz band was forecasted approximately 2.5. The terahertz time domain spectrometer (THz-TDS) results revealed that the THz reflectance was of gradual degradation from 80 to 58% at 3.2THz, as the thickness increased from 11 to 17m. In addition, the UV-VIS spectrum showed that thickness had little effect on reflectance and transmittance in visible region, leading to the almost same E-g (energy gap) about 3.7eV. At last, by employing PMMA film as the dielectric layer, a highly wideband metamaterial absorber with absorption >80% from 4.1 to 7.4THz was fabricated. |
| WOS研究方向 | Engineering ; Optics ; Physics |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27433]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Shi, Zaiying,Song, Lixin,Zhang, Tao. Optical and Electrical Characterization of Pure PMMA for Terahertz Wide-band Metamaterial Absorbers[J]. JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES,2019,40(1):80. |
| APA | Shi, Zaiying,Song, Lixin,&Zhang, Tao.(2019).Optical and Electrical Characterization of Pure PMMA for Terahertz Wide-band Metamaterial Absorbers.JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES,40(1),80. |
| MLA | Shi, Zaiying,et al."Optical and Electrical Characterization of Pure PMMA for Terahertz Wide-band Metamaterial Absorbers".JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES 40.1(2019):80. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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