Terahertz wave asymmetric transmission based on double-layer subwavelength dielectric grating
文献类型：期刊论文
| 作者 | J.Qiu; J.Xu; F.Fan |
| 刊名 | Optical Engineering
 |
| 出版日期 | 2019 |
| 卷号 | 58期号:6页码:6 |
| 关键词 | Terahertz,asymmetric transmission,subwavelength dielectric grating,one-way transmission,light,slit,Optics |
| ISSN号 | 0091-3286 |
| DOI | 10.1117/1.Oe.58.6.067102 |
| 英文摘要 | A double-layer subwavelength dielectric grating has been designed, fabricated, and characterized for terahertz (THz) wave asymmetric transmission. The subwavelength grating resonance effect and the first-order diffraction effect of the two different grating structures lead to the different light paths of the forward and backward waves, and thus the one-way transmission can be realized. The transmission and resonance properties of this grating with different polarization and propagation directions have been demonstrated experimentally and theoretically, which show that this is a nonmagnetic one-way transmission device with an extinction ratio of over 15 dB and insertion loss of lower than 5 dB at 1.45 THz. We provide an effective way to nonmagnetic THz asymmetric transmission devices operating at room temperature without rotating or converting the polarization state of incident wave. (C) 2019 Society of Photo-Optical Instrumentation Engineers (SPIE) |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/63106]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | J.Qiu,J.Xu,F.Fan. Terahertz wave asymmetric transmission based on double-layer subwavelength dielectric grating[J]. Optical Engineering,2019,58(6):6. |
| APA | J.Qiu,J.Xu,&F.Fan.(2019).Terahertz wave asymmetric transmission based on double-layer subwavelength dielectric grating.Optical Engineering,58(6),6. |
| MLA | J.Qiu,et al."Terahertz wave asymmetric transmission based on double-layer subwavelength dielectric grating".Optical Engineering 58.6(2019):6. |
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