Slowing surface plasmon polaritons on plasmonic coupled cavities by tuning grating grooves
Author
Balcı, Sinan
Kocabaş, Aşkın
Kocabaş, Coşkun
Aydınlı, Atilla
Date
2010-09Source Title
Applied Physics Letters
Print ISSN
0003-6951
Publisher
American Institute of Physics
Volume
97
Issue
13
Pages
1 - 3
Language
English
Type
ArticleItem Usage Stats
148
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Abstract
We investigate slow surface plasmon polaritons (SPPs) in plasmonic waveguiding bands formed by coupled plasmonic cavities on Moiŕ surfaces. We demonstrate controlling the group velocity and dispersion of the SPPs by varying the depth of the plasmonic Bragg grating groove. Changing the grating depth results in modification of coupling coefficients between the cavities and hence the SPPs group velocity is altered. Variation in the group velocity and dispersion of SPPs can be measured with polarization dependent spectroscopic reflection measurements. Dispersion of SPPs has been calculated by finite-difference time-domain method in agreement with the experimental data.
Keywords
Coupled cavityCoupling coefficient
Experimental data
Grating depths
Group velocities
Plasmonic
Reflection measurements
Surface plasmon polaritons
Wave-guiding
Finite difference time domain method
Light velocity
Phonons
Photons
Quantum theory
Solids
Surface plasmon resonance
Plasmons
Permalink
http://hdl.handle.net/11693/22209Published Version (Please cite this version)
http://dx.doi.org/10.1063/1.3495781Collections
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