Metasurface Device with Helicity-Dependent Functionality

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Dandan Wen
  • Shumei Chen
  • Fuyong Yue
  • Kinlong Chan
  • Ming Chen
  • Marcus Ardron
  • King Fai Li
  • Polis Wing Han Wong
  • Kok Wai Cheah
  • Guixin Li
  • Shuang Zhang
  • Xianzhong Chen

Detail(s)

Original languageEnglish
Pages (from-to)321-327
Journal / PublicationAdvanced Optical Materials
Volume4
Issue number2
Online published17 Nov 2015
Publication statusPublished - Feb 2016

Link(s)

Abstract

Driven by miniaturization and system integration, ultrathin, multifunction optical elements are urgently needed. Traditional polarization-selective optical elements are mainly based on birefringence, which is realized by using the well-designed structure of each phase pixel. However, further reduction of the pixel size and improvement of the phase levels are hindered by the complicated fabrication process. An approach is proposed to realize a metasurface device that possesses two distinct functionalities. The designed metasurface device, consisting of gold nanorods with spatially varying orientation, has been experimentally demonstrated to function as either a lens or a hologram, depending on the helicity of the incident light. As the phase of the scattered light is controlled by the orientation of the nanorods, arbitrary phase levels and dispersionless phase profile can be realized through a much simpler fabrication process than the conventional device. This approach provides an unconventional alternative to realize multifunction optical element, dramatically increasing the functionality density of the optical systems.

Research Area(s)

  • Helicity-dependent functionality, Hologram, Lens, Metasurface, Ultrathin multifunction devices

Citation Format(s)

Metasurface Device with Helicity-Dependent Functionality. / Wen, Dandan; Chen, Shumei; Yue, Fuyong; Chan, Kinlong; Chen, Ming; Ardron, Marcus; Li, King Fai; Wong, Polis Wing Han; Cheah, Kok Wai; Pun, Edwin Yue Bun; Li, Guixin; Zhang, Shuang; Chen, Xianzhong.

In: Advanced Optical Materials, Vol. 4, No. 2, 02.2016, p. 321-327.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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