Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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Analysis of a Triangular-shaped Plasmonic Metal-Insulator-Metal Bragg Grating Waveguide

  • Jafarian, Behnaz (Faculty of Electrical and Computer Engineering, K. N. Toosi University of Technology) ;
  • Nozhat, Najmeh (Faculty of Electrical and Computer Engineering, K. N. Toosi University of Technology) ;
  • Granpayeh, Nosrat (Faculty of Electrical and Computer Engineering, K. N. Toosi University of Technology)
  • Received : 2010.09.28
  • Accepted : 2011.03.28
  • Published : 2011.06.25
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Abstract

A novel triangular-shaped plasmonic metal-insulator-metal (MIM) Bragg grating waveguide is introduced, whose band-gap is narrower than that of the conventional step type and wider than that of the sawtoothshaped one. Moreover apodized triangular-shaped MIM Bragg grating structures are proposed in order to reduce the side lobes of the transmission spectrum, because the Bragg reflector with a sawtooth profile has a smoother transmission spectrum than that of a triangular-shaped one. The performance of the proposed structures is simulated by using the finite difference time domain method.

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References

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