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Proceedings Paper

High-efficiency and tunable metasurfaces in reflective and transmissive geometries (Conference Presentation)
Author(s): Lei Zhou; Qiong He; Shulin Sun

Paper Abstract

We have recently studied the physics and functionalities of metasurfaces in both reflective and transmissive geometries, with passive and actively tunable functionalities. In the first part, we first present a complete phase diagram to understand/predict the diversified and fascinating functionalities of metasurfaces in metal-insulator-metal (MIM) configuration [1], based on which we combined graphene with metasurface to achieve wide-range active THz phase modulation [2]. We next describe our recent efforts to realize tunable metasurfaces in the microwave regime to realize dynamically-controllable functionalities [3]. In the second part, we will describe our recent efforts to realize surface-plasmon-polariton (SPP) meta-couplers with very high efficiencies, based on gradient metasurfaces [4]. Finally, we show that 100%-efficiency photonic spin-Hall effect (PSHE) can be realized in geometric-phase metasurfaces with meta-atoms satisfying certain criterions, which help us design microwave metasurfaces exhibiting nearly 100% PSHE efficiency in both reflection and transmission geometries [5]. References [1] C. Qu et al., Phys. Rev. Lett. 115, 235503 (2015) [2] Z. Q. Miao et al., Phys. Rev. X 5, 041027 (2015). [3] H. X. Xu et al., Sci. Rep. 6 27503 (2016); Sci. Rep. 6 38255 (2016); Appl. Phys. Lett. 109, 193506 (2016) [4] W. J. Sun et al., Light: Science & Applications 5, 16003 (2016). [5] W. J. Luo et al., Adv. Opt. Mater. 3, 1102 (2015); Phys. Rev. Appl. (2017).

Paper Details

Date Published: 14 March 2018
Proc. SPIE 10536, Smart Photonic and Optoelectronic Integrated Circuits XX, 1053609 (14 March 2018); doi: 10.1117/12.2293360
Show Author Affiliations
Lei Zhou, Fudan Univ. (China)
Qiong He, Fudan Univ. (China)
Shulin Sun, Fudan Univ. (China)

Published in SPIE Proceedings Vol. 10536:
Smart Photonic and Optoelectronic Integrated Circuits XX
Sailing He; El-Hang Lee, Editor(s)

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