Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/139050
Title: Broadband wide-angle multifunctional polarization converter via liquid-metal-based metasurface
Authors: Wu, Pin Chieh
Zhu, Weiming
Shen, Zhong Xiang
Chong, Peter Han Joo
Ser, Wee
Tsai, Din Ping
Liu, Ai-Qun
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2017
Source: Wu, P. C., Zhu, W., Shen, Z. X., Chong, P. H. J., Ser, W., Tsai, D. P., & Liu, A.-Q. (2017). Broadband wide-angle multifunctional polarization converter via liquid-metal-based metasurface. Advanced Optical Materials, 5(7), 1600938-. doi:10.1002/adom.201600938
Project: NRF-CRP13-2014-01
NRF2014NRF-CRP001-002
Journal: Advanced Optical Materials
Abstract: Metasurfaces enable flat optical components with predesigned functionalities, including the polarization conversion using subwavelength elements. However, switching between different functionalities of the metasurface-based optical components is extremely difficult because subwavelength elements have to be finely addressed to change the spatial phase gradient for desired functionality. Here, it is demonstrated, for the first time, a broadband wide-angle multifunctional polarization converter via galinstan-based metasurface with each element array actively addressed. The switching between different functionalities is realized by controlling L-shaped galinstan resonator using microfluidic channels, which maintain the optical performances, that is, broadband and large angular tolerance, of the polarization converter. Furthermore, the galinstan-based metasurface is also demonstrated to function as a broadband optical attenuator, which provides prospects for various applications, such as smart radar, stealth technology, and light manipulation for quantum communication.
URI: https://hdl.handle.net/10356/139050
ISSN: 2195-1071
DOI: 10.1002/adom.201600938
Rights: This is the peer reviewed version of the following article: Wu, P. C., Zhu, W., Shen, Z. X., Chong, P. H. J., Ser, W., Tsai, D. P., & Liu, A.-Q. (2017). Broadband wide-angle multifunctional polarization converter via liquid-metal-based metasurface. Advanced Optical Materials, 5(7), 1600938-. doi:10.1002/adom.201600938, which has been published in final form at 10.1002/adom.201600938. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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