Optical resonances in periodic surface arrays of metallic patches
- 1 October 2003
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 42 (28) , 5714-5721
- https://doi.org/10.1364/ao.42.005714
Abstract
The transmission of light along the surface normal through an air-quartz-glass interface covered with a periodic array of thin, rectangular gold patches has been studied over the visible to infrared range. The various structures that are observed can be qualitatively understood as arising from standing-wave resonances set by the size and surroundings of the metal patches. A method-of-moments calculational scheme provides simulations in good quantitative agreement with the data. It is shown how the standing-wave picture provides a useful conceptual framework to understand and exploit such systems.Keywords
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