Please use this identifier to cite or link to this item:
|Title:||Split Archimedean spiral metasurface for controllable GHz asymmetric transmission||Authors:||Song, Qing Hua
Wu, Pin Chieh
Zhu, Wei Ming
Shen, Ze Xiang
Chong, Peter Han Joo
Liang, Qing Xuan
Tsai, D. P.
Liu, Ai Qun
DRNTU::Engineering::Electrical and electronic engineering
|Issue Date:||2019||Source:||Song, Q. H., Wu, P. C., Zhu, W. M., Zhang, W., Shen, Z. X., Chong, P. H. J., . . . Liu, A. Q. (2019). Split Archimedean spiral metasurface for controllable GHz asymmetric transmission. Applied Physics Letters, 114(15), 151105-. doi:10.1063/1.5084329||Series/Report no.:||Applied Physics Letters||Abstract:||A chiral metasurface, which obtains chirality through a subwavelength artificial structure, is essential for realizing asymmetric transmission in the application of enantioselective sensing, spin-dependent light emission, and other polarization control systems. Here, we studied a split Archimedean spiral metasurface, which can control the propagating wave from asymmetric transmission to symmetric transmission for linear polarized light. As a proof of concept, a dual-band asymmetric transmission is demonstrated in the GHz region using the coupling of the split spiral structures. The maximum asymmetric transmission parameter reaches 53%. By manipulating the height of the split spiral structures using microfluidic technology, a broadband asymmetric transmission is obtained with the bandwidth of 25.9%. Meanwhile, the asymmetric transmission can be controlled from 50% to 0%, enabling the propagation wave from asymmetric transmission to symmetric transmission. Furthermore, the asymmetric transmission is maintained when the metasurface is bent into different curvatures, promising high potential applications for optical isolation, one-way glass, and optical interconnects.||URI:||https://hdl.handle.net/10356/85227
|ISSN:||0003-6951||DOI:||10.1063/1.5084329||Rights:||© 2019 Author(s). Published under license by AIP Publishing.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||EEE Journal Articles|
Files in This Item:
|Split Archimedean spiral metasurface for controllable GHz asymmetric transmission.pdf||1.61 MB||Adobe PDF|
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.