TY - JOUR
T1 - Broadband Wide-Angle Multifunctional Polarization Converter via Liquid-Metal-Based Metasurface
AU - Wu, Pin Chieh
AU - Zhu, Weiming
AU - Shen, Zhong Xiang
AU - Chong, Peter Han Joo
AU - Ser, Wee
AU - Tsai, Din Ping
AU - Liu, Ai Qun
N1 - Funding Information:
This work was mainly supported by Singapore National Research Foundation under the Incentive for Research & Innovation Scheme (Grant No. 1102-IRIS-05-01) administered by PUB, and under the Competitive Research Program (Award No. NRF-CRP13-2014-01 and Project No. NRF2014NRF-CRP001-002), Singapore Ministry of Education (Grant No. RG89/13), Ministry of Science and Technology, Taiwan (Grant No. MOST-105-2745-M-002-005-ASP), and Academia Sinica (Grant No. AS-103-TP-A06). The authors are also grateful to National Center for Theoretical Sciences, NEMS Research Center of National Taiwan University, National Center for High-Performance Computing, Taiwan, and Research Center for Applied Sciences, Academia Sinica, Taiwan for their supports.
Publisher Copyright:
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2017/4/3
Y1 - 2017/4/3
N2 - 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.
AB - 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.
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U2 - 10.1002/adom.201600938
DO - 10.1002/adom.201600938
M3 - Article
AN - SCOPUS:85011985290
VL - 5
JO - Advanced Optical Materials
JF - Advanced Optical Materials
SN - 2195-1071
IS - 7
M1 - 1600938
ER -