Journal of Nanoparticle Research

, Volume 11, Issue 4, pp 785–792 | Cite as

Calculation of curvature dependent surface plasmon resonance in gold nanospheroid and nanoshell

Research Paper


In this paper, theoretical calculations based on dipole-limit are performed to investigate the effects of curvature on the surface plasmon resonance (SPR) properties of nanometer size gold spheroid and shell. By comparing the aspect ratio with the shell thickness, we demonstrated that the curvature radius is a common better factor that can be used to predict the SPR wavelength and shift fashion. For nanospheroid, increasing the ratio of curvature radius corresponding to the climaxes leads to an increase in the ratio of SPR wavelength, whereas increasing the ratio of curvature radius of outer and inner surface in nanoshell leads to an decrease in the ratio of SPR wavelength. As a morphologic factor, curvature radius plays an important role in affecting the distribution of electron density, and consequently controlling the SPR frequency.


Curvature Gold nanospheroid Gold nanoshell Surface plasmon resonance (SPR) Quasi-static Theory Simulation 


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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  1. 1.Institute of Modern Physics, School of ScienceXi’an Jiaotong UniversityXi’anPeoples Republic of China

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