NIST Authors in **Bold**

Author(s): | David R. Penn; S Apell; |
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Title: | Optical Properties of Small Metal Spheres: Surface Effects |

Published: | April 25, 1983 |

Abstract: | It has been assumed that the optical properties of small spheres can be understood by means of a Drude dielectric function that incorporates a boundary scattering rate 1 / τ_{s}~=v_{F} / R, where vF is the Fermi velocity and R is the sphere radius. An effective scattering rate 1 / τ_{s}=fv_{F} / R is calculated and f is evaluated as a function of photon frequency. The largest contribution to f is due to the electron density profile of the sphere rather than the boundary scattering that is reduced an order of magnitude by electron screening. |

Citation: | Physical Review Letters |

Volume: | 50 |

Issue: | 17 |

Research Areas: | Condensed Matter Physics |