24 December 2014 Nanoscale plasmonic filter based on coupled metal-insulator-metal waveguides using nonlinear nanoslot resonator
Hamed Arianfard, Rahim Ghayour
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Abstract
A nanoscale optical filter based on metal-insulator-metal waveguides and a Kerr-type nonlinear nanoslot resonator is introduced and numerically investigated by finite-difference time-domain simulations. It is demonstrated that the resonant wavelengths of the nanoslot resonator experience a red shift due to the intensity dependence of the Kerr nonlinear effect. The simulation results reveal that the resonant modes of the proposed filter can be tuned by properly adjusting the input signal intensity without changing the dimensions of the filter structure. The findings of this study are useful for highly integrated optical circuits, for which we have limitations on the dimensions of the filter structure. In addition, the results are suitable for design of integrated optical waveguides and resonators based on the plasmonic effect. A significant advantage of the proposed tunable filter is its ease of fabrication.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2015/$25.00 © 2015 SPIE
Hamed Arianfard and Rahim Ghayour "Nanoscale plasmonic filter based on coupled metal-insulator-metal waveguides using nonlinear nanoslot resonator," Journal of Nanophotonics 9(1), 093799 (24 December 2014). https://doi.org/10.1117/1.JNP.9.093799
Published: 24 December 2014
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CITATIONS
Cited by 10 scholarly publications.
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KEYWORDS
Waveguides

Resonators

Nonlinear filtering

Plasmonics

Nonlinear optics

Optical filters

Finite-difference time-domain method

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