The transverse magnetic reflectivity minimum of metals
Hooper, Ian R.; Sambles, J. Roy; Bassom, Andrew P.
Date: 2008
Journal
Optics Express
Publisher
Optical Society of America
Abstract
Metal surfaces, which are generally regarded as excellent reflectors of electromagnetic radiation, may, at high angles of incidence,
become strong absorbers for transverse magnetic radiation. This effect,
often referred to as the pseudo-Brewster angle, results in a reflectivity
minimum, and is most strongly evident in the microwave ...
Metal surfaces, which are generally regarded as excellent reflectors of electromagnetic radiation, may, at high angles of incidence,
become strong absorbers for transverse magnetic radiation. This effect,
often referred to as the pseudo-Brewster angle, results in a reflectivity
minimum, and is most strongly evident in the microwave domain, where metals are often treated as perfect conductors. A detailed analysis of this reflectivity minimum is presented here and it is shown why, in the limit of very long wavelengths, metals close to grazing incidence have a minimum
in reflectance given by (√2−1)2 .
Physics and Astronomy
Faculty of Environment, Science and Economy
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