Fluorescence Enhancement by Surface Plasmon Polaritons on Metallic Nanohole Arrays

  • Guo P
  • Wu S
  • Ren Q
 et al. 
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A maximum fluorescence enhancement of 11 times was achieved by surface plasmon polaritons (SPPs) on a silver nanohole array region in reflection mode, compared to that on the nonarray area. A 30 nm dielectric SiO2 film was sputtered on the silver film as a spacer to separate the fluorophore from silver for attenuation of the fluorescence quenching. An array period of 550 nm and a nanohole radius of 100 nm were optimized to match the most efficient fluorescence excitation and emission of a boron-dipyrromethene fluorophore (BODIPY 630/650) on the array region.

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  • Peng-Feng Guo

  • Shan Wu

  • Qin-Jun Ren

  • Jian Lu

  • Zhanghai Chen

  • Shou-Jun Xiao

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