Helicity multiplexed broadband metasurface holograms.
Metasurfaces are engineered interfaces that contain a thin layer of plasmonic or dielectric nanostructures capable of manipulating light in a desirable manner. Advances in metasurfaces have led to various practical applications ranging from lensing to holography. Metasurface holograms that can be switched by the polarization state of incident light have been demonstrated for achieving polarization multiplexed functionalities. However, practical application of these devices has been limited by their capability for achieving high efficiency and high image quality. Here we experimentally demonstrate a helicity multiplexed metasurface hologram with high efficiency and good image fidelity over a broad range of frequencies. The metasurface hologram features the combination of two sets of hologram patterns operating with opposite incident helicities. Two symmetrically distributed off-axis images are interchangeable by controlling the helicity of the input light. The demonstrated helicity multiplexed metasurface hologram with its high performance opens avenues for future applications with functionality switchable optical devices.
SUPA, Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK.
Dandan
D
Wen
SUPA, Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK.
Fuyong
F
Yue
School of Physics &Astronomy, University of Birmingham, Birmingham B15 2TT, UK.|Department of Physics, Hong Kong Baptist University, Kowloon Tong, Hong Kong.
Guixin
G
Li
School of Physics &Astronomy, University of Birmingham, Birmingham B15 2TT, UK.|School of Electronic Information, Wuhan University, Wuhan 430072, China.
Guoxing
G
Zheng
Department of Physics, Hong Kong Baptist University, Kowloon Tong, Hong Kong.
Kinlong
K
Chan
Department of Physics, Hong Kong Baptist University, Kowloon Tong, Hong Kong.
Shumei
S
Chen
SUPA, Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK.|Guangxi Experiment Center of Information Science, Guilin University of Electronic Technology, Guilin 541004, China.
Ming
M
Chen
Department of Physics, Hong Kong Baptist University, Kowloon Tong, Hong Kong.
King Fai
KF
Li
Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong.
Polis Wing Han
PW
Wong
Department of Physics, Hong Kong Baptist University, Kowloon Tong, Hong Kong.
Kok Wai
KW
Cheah
Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong.|State Key Laboratory of Millimeter Waves, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong.
Edwin Yue Bun
EY
Pun
School of Physics &Astronomy, University of Birmingham, Birmingham B15 2TT, UK.
Shuang
S
Zhang
SUPA, Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK.
Xianzhong
http://orcid.org/0000-0001-7521-1548
X
Chen