Evaluation of the limits of resonance tunability in metallic nanoshells with a spectral averaging method

Optical Society of America
Publication Type:
Journal Article
Journal of the Optical Society of America A: Optics Image Science and Vision, 2005, 22 (7), pp. 1288 - 1292
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Spectral selectivity based on tuning the surface plasmon resonance in metallic nanoshells by variation of the relative shell thickness is shown to be limited by the interplay between scattering and absorption. To achieve resonance energies in the near infrared and infrared, relatively large cores are needed, which lead to strong and broad scattering bands and multipolar contributions in the visible.
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