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Enhancement of Dynamic Sensitivity of Multiple Surface-plasmonic-polaritonic Sensor Using Silver Nanoparticles

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Abstract

Multiple surface plasmon-polariton (SPP) waves excited at the interface of a homogeneous isotropic metal and a chiral sculptured thin film (STF) impregnated with silver nanoparticles were theoretically assessed for the multiple-SPP-waves-based sensing of a fluid uniformly infiltrating the chiral STF. The Bruggemann homogenization formalism was used in two different modalities to determine the three principal relative permittivity scalars of the silver-nanoparticle-impregnated chiral STF infiltrated uniformly by the fluid. The dynamic sensitivity increased when silver nanoparticles were present, provided their volume fraction did not exceed about 1 %.

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Authors and Affiliations

  1. Department of Physics, Lahore University of Management Sciences, Lahore, 54792, Pakistan

    Farhat Abbas & Muhammad Faryad

  2. Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA, 16802, USA

    Stephen E. Swiontek & Akhlesh Lakhtakia

Authors
  1. Farhat Abbas
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  2. Muhammad Faryad
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  3. Stephen E. Swiontek
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  4. Akhlesh Lakhtakia
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Correspondence to Muhammad Faryad.

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Abbas, F., Faryad, M., Swiontek, S.E. et al. Enhancement of Dynamic Sensitivity of Multiple Surface-plasmonic-polaritonic Sensor Using Silver Nanoparticles. Plasmonics 11, 987–994 (2016). https://doi.org/10.1007/s11468-015-0133-x

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  • DOI: https://doi.org/10.1007/s11468-015-0133-x

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