Reflection from a Gold Sputtered Thin Layer

This paper presents the results of an investigation of a thin layer of gold sputtered on a dielectric foil. This layer is modeled by nanometer-scale spherical particles that are separated at short deposition times and later touch each other, forming a continuous layer. Four ways of analyzing the str...

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Bibliographic Details
Main Authors: Buchar, P., Machac, J., Zehentner, J., Slepicka, P., Svorcik, V.
Format: Conference Proceeding
Language:English
Subjects:
Conductivity
Dielectrics
Electromagnetic reflection
Electromagnetic scattering
Gold
Microwave frequencies
Optical reflection
Polarization
Sputtering
Surface impedance
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Summary:This paper presents the results of an investigation of a thin layer of gold sputtered on a dielectric foil. This layer is modeled by nanometer-scale spherical particles that are separated at short deposition times and later touch each other, forming a continuous layer. Four ways of analyzing the structure are introduced. The first method describes the spheres by their electric dipole moment, while the second, newly proposed method, takes into account the capacity between adjacent spheres, and the third method assumes the layer as homogeneous and considers its reduced conductivity due to the behavior of electrons in thin films. The CST microwave studio model, which takes into account the random distribution of particles, offers the reflection coefficient that best fits measured data.
DOI:10.1109/MIKON.2006.4345261