Normal-incidence scattering of surface plasmon polaritons by one-dimensional nanoindentations: a multimodal description

In this paper a theoretical study is made on the scattering of surface plasmon polaritons by a finite periodic array of one-dimensional rectangular grooves. Our approach is based on a multimodal expansion technique. We have found that the geometrical parameters of the array can be properly tuned to...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2007-11, Vol.89 (2), p.251-258
Main Authors: López-Tejeira, F., García-Vidal, F.J., Martín-Moreno, L.
Format: Article
Language:English
Subjects:
Applied physics
Arrays
Bragg reflectors
Converters
Grooves
Materials science
Nanoindentation
Polaritons
Scattering
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Summary:In this paper a theoretical study is made on the scattering of surface plasmon polaritons by a finite periodic array of one-dimensional rectangular grooves. Our approach is based on a multimodal expansion technique. We have found that the geometrical parameters of the array can be properly tuned to achieve optimal performance of the structure either as a Bragg reflector or as a converter of surface plasmon polaritons into light. Most importantly, such functionalities can be fully achieved with a relatively small number of grooves.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-007-4103-9