Electrically-controlled digital metasurface device for light projection displays

Jianxiong Li, Ping Yu, Shuang Zhang and Na Liu ()
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Jianxiong Li: Max Planck Institute for Intelligent Systems
Ping Yu: Max Planck Institute for Intelligent Systems
Shuang Zhang: University of Birmingham
Na Liu: University of Heidelberg

Nature Communications, 2020, vol. 11, issue 1, 1-7

Abstract: Abstract Light projection displays play an increasingly important role in our modern life. Core projection systems including liquid crystal displays and digital micromirror devices can impose spatial light modulation and actively shape light waves. Recently, the advent of metasurfaces has revolutionized design concepts in nanophotonics, enabling a new family of optical elements with exceptional degrees of freedom. Here, we demonstrate a light projection display technology based on optical metasurfaces, called digital metasurface device (DMSD). Each metasurface pixel in a DMSD is electrically reconfigurable with well-controlled programmability and addressability. The DMSD can not only continuously modulate the intensity of light with high contrast, but also shape the wavefront of light generated by each metasurface pixel and dynamically switch between arbitrary holographic patterns. Our approach will pave an avenue towards the development of customized light projection devices. It will also drive the field of dynamic optical metasurfaces with fresh momentum and inspiring concepts.

Date: 2020
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DOI: 10.1038/s41467-020-17390-3

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