Hybrid graphene metasurfaces for high-speed mid-infrared light modulation and single-pixel imaging

Beibei Zeng, Zhiqin Huang, Akhilesh Singh, Yu Yao, Abul K. Azad, Aditya D. Mohite, Antoinette J. Taylor, David R. Smith, Hou Tong Chen

Research output: Contribution to journalArticle

38 Scopus citations

Abstract

During the past decades, major advances have been made in both the generation and detection of infrared light; however, its efficient wavefront manipulation and information processing still encounter great challenges. Efficient and fast optoelectronic modulators and spatial light modulators are required for mid-infrared imaging, sensing, security screening, communication and navigation, to name a few. However, their development remains elusive, and prevailing methods reported so far have suffered from drawbacks that significantly limit their practical applications. In this study, by leveraging graphene and metasurfaces, we demonstrate a high-performance free-space mid-infrared modulator operating at gigahertz speeds, low gate voltage and room temperature. We further pixelate the hybrid graphene metasurface to form a prototype spatial light modulator for high frame rate single-pixel imaging, suggesting orders of magnitude improvement over conventional liquid crystal or micromirror-based spatial light modulators. This work opens up the possibility of exploring wavefront engineering for infrared technologies for which fast temporal and spatial modulations are indispensable.

Original languageEnglish (US)
Article number51
JournalLight: Science and Applications
Volume7
Issue number1
DOIs
StatePublished - Dec 1 2018

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this

Zeng, B., Huang, Z., Singh, A., Yao, Y., Azad, A. K., Mohite, A. D., Taylor, A. J., Smith, D. R., & Chen, H. T. (2018). Hybrid graphene metasurfaces for high-speed mid-infrared light modulation and single-pixel imaging. Light: Science and Applications, 7(1), [51]. https://doi.org/10.1038/s41377-018-0055-4