Light-driven plasmonic color filters by overlaying photoresponsive liquid crystals on gold annular aperture arrays

  • Liu Y
  • Si G
  • Leong E
 et al. 
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In conclusion, we have demonstrated light-driven plasmonic color fi lters by inte- grating gold AAAs with photoresponsive LCs. The light-excited PSPs and CSPs play a collective role in their transmission prop- erties. PSP-induced transmission gradu- ally plays a dominant role as the aperture size increases. This device demonstrates an all-optical modulation of the transmis- sion intensity due to the trans – cis photo- isomerization-induced N–I phase transition of the LCs. The all-optical tuning behavior is highly reversible and reproducible. Our future work includes developing red, green, and blue plasmonic color fi lters with opti- mized performance. We expect that with such three color fi lters, any color could be achieved by optically controlling their compositions, thus advancing information displays.

Author-supplied keywords

  • annular aperture arrays
  • color filters
  • liquid crystals
  • photoisomerization
  • surface plasmons

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  • Yan Jun Liu

  • Guang Yuan Si

  • Eunice S P Leong

  • Ning Xiang

  • Aaron J. Danner

  • Jing Hua Teng

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