Active and Smart Terahertz Electro-Optic Modulator Based on VO2 Structure
文献类型：期刊论文
| 作者 | Ren, Zhuang2; Xu, Jinyi1; Liu, Jinming1; Li, Bolin2; Zhou, Chun2; Sheng, Zhigao2
|
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2022-06-15 |
| 卷号 | 14 |
| ISSN号 | 1944-8244 |
| 关键词 | electro-optic modulation THz modulation antireflection VO2 thin film smart control |
| DOI | 10.1021/acsami.2c04736 |
| 通讯作者 | Sheng, Zhigao(zhigaosheng@hmfl.ac.cn) |
| 英文摘要 | Modulating terahertz (THz) waves actively and smartly through an external field is highly desired in the development of THz spectroscopic devices. Here, we demonstrate an active and smart electro-optic THz modulator based on a strongly correlated electron oxide vanadium dioxide (VO2). With milliampere current excitation on the VO2 thin film, the transmission, reflection, absorption, and phase of THz waves can be modulated efficiently. In particular, the antireflection condition can be actively achieved and the modulation depth reaches 99.9%, accompanied by a 180 degrees phase switching. Repeated and current scanning experiments confirm the high stability and multibit modulation of this electro-optic modulation. Most strikingly, by utilizing a feedback loop of "THz-electro-THz" geometry, a smart electro-optic THz control is realized. For instance, the antireflection condition can be stabilized precisely no matter what the initial condition is and how the external environment changes. The proposed electro-optic THz modulation method, taking advantage of strongly correlated electron material, opens up avenues for the realization of THz smart devices. |
| WOS关键词 | METAL-INSULATOR-TRANSITION ; MEMORY DEVICE ; THIN-FILMS ; METAMATERIAL ; SPECTROSCOPY ; DRIVEN |
| 资助项目 | National Key R&D Program of China[2021YFA1600200] ; National Key R&D Program of China[2017YFA0303603] ; National Natural Science Foundation of China[U2032218] ; National Natural Science Foundation of China[12111530283] ; National Natural Science Foundation of China[61805256] ; Plan for Major Provincial Science & Technology Project[202003a05020018] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SLH011] ; Users with Excellence Program of Hefei Science Center CAS[2021HSCUE009] ; High Magnetic Field Laboratory of Anhui Province |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000812430200001 |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; Plan for Major Provincial Science & Technology Project ; Key Research Program of Frontier Sciences, CAS ; Users with Excellence Program of Hefei Science Center CAS ; High Magnetic Field Laboratory of Anhui Province |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/131279]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Sheng, Zhigao |
| 作者单位 | 1.Anhui Univ, Hefei 230601, Peoples R China 2.Chinese Acad Sci, Anhui Key Lab Condensed Matter Phys Extreme Condi, High Magnet Field Lab, HFIPS, Hefei 230031, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ren, Zhuang,Xu, Jinyi,Liu, Jinming,et al. Active and Smart Terahertz Electro-Optic Modulator Based on VO2 Structure[J]. ACS APPLIED MATERIALS & INTERFACES,2022,14. |
| APA | Ren, Zhuang,Xu, Jinyi,Liu, Jinming,Li, Bolin,Zhou, Chun,&Sheng, Zhigao.(2022).Active and Smart Terahertz Electro-Optic Modulator Based on VO2 Structure.ACS APPLIED MATERIALS & INTERFACES,14. |
| MLA | Ren, Zhuang,et al."Active and Smart Terahertz Electro-Optic Modulator Based on VO2 Structure".ACS APPLIED MATERIALS & INTERFACES 14(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。