Near dispersion-less surface plasmon polariton resonances at a metal-dielectric interface with patterned dielectric on top
Author(s)
Kasture, Sachin
Mandal, P.
Singh, Amandev
Ramsay, Andrew
Vengurlekar, A.
Dutta Gupta, S.
Belotelov, Vladimir
Gopal, Achanta Venu
Griffith University Author(s)
Year published
2012
Metadata
Show full item recordAbstract
We report possibility of surface plasmon polariton modes that can be excited by incident light of a fixed frequency coming at wide angles. We experimentally show such modes in structures with smooth dielectric-metal-dielectric interfaces having 2-D dielectric patterns on top. Calculated field profile establishes the field localization at the metal-dielectric interfaces. We show that the position and dispersion of the excited modes can be controlled by the excitation geometry and the 2-D pattern.We report possibility of surface plasmon polariton modes that can be excited by incident light of a fixed frequency coming at wide angles. We experimentally show such modes in structures with smooth dielectric-metal-dielectric interfaces having 2-D dielectric patterns on top. Calculated field profile establishes the field localization at the metal-dielectric interfaces. We show that the position and dispersion of the excited modes can be controlled by the excitation geometry and the 2-D pattern.
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Journal Title
Applied Physics Letters
Volume
101
Issue
9
Subject
Engineering not elsewhere classified
Physical Sciences not elsewhere classified
Physical Sciences
Engineering
Technology