ABSORPTION AND ELASTIC-SCATTERING OF LIGHT BY PARTICLE AGGREGATES

被引：145

作者：

QUINTEN, M

KREIBIG, U

机构：

[1] Physikalisches Institut, Rheinisch-Westfalische Technische Hochschule Aachen, Aachen

来源：

APPLIED OPTICS | 1993年 / 32卷 / 30期

关键词：

LIGHT SCATTERING AND ABSORPTION; RESONANT OPTICAL EXTINCTION; EXTINCTION LOSS SPECTRA; AGGREGATES OF SPHERES;

D O I：

10.1364/AO.32.006173

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Light scattering and absorption by spherical particles is extended to aggregates of spheres with arbitrary shape and size. We applied the theory of Gerardy and Ausloos [Phys. Rev. B 25, 4204-4229 (1982)] to compute the total extinction loss spectra of several aggregates of nanometer-sized silver spheres from the near IR to the near UV. Silver was best suited to provide quantitative comparison with experiments concerning the scattering and absorption in the visible spectral region. Additional resonant extinction was obtained besides the resonant extinction of the single silver sphere. The spectra were discussed in detail to give general results that are independent of the particle material.

引用

页码：6173 / 6182

页数：10

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