Manipulation enhancement of terahertz liquid crystal phase shifter magnetically induced by ferromagnetic nanoparticles
文献类型：期刊论文
| 作者 | Y.Y.Ji; F.Fan; S.T.Xu; J.P.Yu; S.J.Chang |
| 刊名 | Nanoscale
 |
| 出版日期 | 2019 |
| 卷号 | 11期号:11页码:4933-4941 |
| 关键词 | Birefringence,wave,suspensions,Chemistry,Science & Technology - Other Topics,Materials Science |
| ISSN号 | 2040-3364 |
| DOI | 10.1039/c8nr09259a |
| 英文摘要 | Ferromagnetic liquid crystals (FLCs), the suspensions of magnetic nanoparticles dispersed at different concentrations in liquid crystals (LCs), and their special magnetically induced birefringence characteristics have been investigated in the terahertz regime, mainly focusing on the interaction between magnetic cluster chains and LC molecules. We experimentally demonstrated the surface anchoring effect of the magnetic cluster chains on LC molecules in a mm-thick LC cell under an extremely weak external magnetic field (EMF), leading to a uniform anchoring arrangement of the LC molecules over the entire LC cell. Unlike pure 5CB LCs, the phase shift range of the FLCs at 1.45 THz up to pi (n(o) to n(e )or n(e) to n(o)) can be achieved over the whole tunable range by simply changing the magnitude of the EMF without changing its direction, and the optical axis of LC molecules can be controlled to rotate by 90 degrees, thereby realizing a tunable THz wave plate. This work provides a new way in the development of THz magneto-optic devices and phase devices. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/63312]  |
| 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 | Y.Y.Ji,F.Fan,S.T.Xu,et al. Manipulation enhancement of terahertz liquid crystal phase shifter magnetically induced by ferromagnetic nanoparticles[J]. Nanoscale,2019,11(11):4933-4941. |
| APA | Y.Y.Ji,F.Fan,S.T.Xu,J.P.Yu,&S.J.Chang.(2019).Manipulation enhancement of terahertz liquid crystal phase shifter magnetically induced by ferromagnetic nanoparticles.Nanoscale,11(11),4933-4941. |
| MLA | Y.Y.Ji,et al."Manipulation enhancement of terahertz liquid crystal phase shifter magnetically induced by ferromagnetic nanoparticles".Nanoscale 11.11(2019):4933-4941. |
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