Analysis of a Triangular-shaped Plasmonic Metal-Insulator-Metal Bragg Grating Waveguide

作者：Jafarian Behnaz; Nozhat Najmeh; Granpayeh Nosrat^*

来源：Journal of the Optical Society of Korea, 2011, 15(2): 118-123.

DOI：10.3807/JOSK.2011.15.2.118

• Plasmonics
• Triangular-shaped MIM Bragg grating
• Bragg reflector
• Band-gap

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 sawtooth-shaped 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.

• 出版日期2011-6