Discrete plasmonic Talbot effect in finite metal waveguide arrays.
Opt Lett
; 40(8): 1635-8, 2015 Apr 15.
Article
em En
| MEDLINE
| ID: mdl-25872035
ABSTRACT
We introduce supermode theory into the propagation of surface plasmon polaritons (SPPs) in nanoscale metal waveguide arrays (MWGAs). The SPP supermodes in finite MWGAs are analyzed and the coefficient of excited supermodes can be determined quantitatively. The field intensity distributions in finite MWGAs can be explained by the superposition of the excited SPP supermodes. The discrete plasmonic Talbot effect in a finite MWGA is achieved successfully by adjusting different intensity for each input field. We also find that the period condition of the input fields in MWGAs is not the same with conventional dielectric waveguides. The theory is verified by the finite difference time-domain (FDTD) method.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2015
Tipo de documento:
Article
País de publicação:
EEUU
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ESTADOS UNIDOS
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ESTADOS UNIDOS DA AMERICA
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EUA
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UNITED STATES
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UNITED STATES OF AMERICA
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US
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USA