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Light scattering from spherical plasmonic nanoantennas: effects of nanoscale roughness

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Abstract

We have investigated the light scattering properties of smooth and roughened nanoshells with dipolar and quadrupolar plasmon resonances tuned to 830 nm. In the dipole resonant case small but measurable variations in the angle dependent light scattering (ADLS) due to the introduction of surface roughness are observed. In the quadrupole case, the distinctive side lobe scattering characteristic of quadrupolar emission is strongly quenched for roughened nanoshells.

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Authors and Affiliations

  1. Department of Chemistry, Rice University, 6100 South Main Street, Houston, TX, 77005, USA

    H. Wang & N.J. Halas

  2. Department of Bioengineering, Rice University, 6100 South Main Street, Houston, TX, 77005, USA

    K. Fu & R.A. Drezek

  3. Department of Electrical and Computer Engineering, Rice University, 6100 South Main Street, Houston, TX, 77005, USA

    R.A. Drezek & N.J. Halas

  4. Laboratory for Nanophotonics (LANP), Rice University, 6100 South Main Street, Houston, TX, 77005, USA

    H. Wang, K. Fu, R.A. Drezek & N.J. Halas

Authors
  1. H. Wang
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  2. K. Fu
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  3. R.A. Drezek
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  4. N.J. Halas
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Corresponding author

Correspondence to N.J. Halas.

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PACS

81.07.-b; 78.67.-n

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Wang, H., Fu, K., Drezek, R. et al. Light scattering from spherical plasmonic nanoantennas: effects of nanoscale roughness. Appl. Phys. B 84, 191–195 (2006). https://doi.org/10.1007/s00340-006-2223-0

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  • DOI: https://doi.org/10.1007/s00340-006-2223-0

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