Iranian Journal of Physics Research

Optical properties of C60 molecules: A quasi-static approximation

Document Type : Original Article

Author

A Moradi

Department of Engineering Physics, Kermanshah University of Technology, Kermanshah, Iran

https://doi.org/10.47176/ijpr.19.4.37561
Abstract
In this paper, the optical properties of a C60 molecule is studied within the framework of the quasi-static approximation. To do this, a C60 molecule is modeled by an infinitesimally thin spherical shell of the π and σ electrons and electronic excitations of this shell is described by means of the two-dimensional two-fluid hydrodynamic theory. At the first, general expression for polarizability of the system is obtained, by solving Laplace and hydrodynamic equations with appropriate boundary conditions. Then, by using the polarizability formula, the extinction spectrum of system is investigated which is in quite agreement with the result of the Mie theory. Also, the Maxwell-Garnett theory for the effective medium approximation of composite materials is developed to study the dielectric response of a composite of C60 molecules.

Keywords

C60 molecule
quasi-static approximation
Maxwell-Garnett theory
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