Numerical Investigation of SPP Propagation at the Nano-scale MDM Waveguides with a Combiner

Md. Ghulam Saber, Rakibul Hasan Sagor, Asif Al Noor, Md. Thesun Al-Amin


We present the propagation characteristics of Surface Plasmon Polariton in the nanoscale Metal-Dielectric-Metal waveguides which consist of a combiner. The propagation loss due to absorption by metal and reflection at the point of recombination are analyzed numerically. We have investigated the structure with different dielectric materials (air, aluminum gallium arsenide, gallium lanthanum sulfide) and for different wavelengths of the input signal. The wavelength dependent reflection coefficient, return loss and voltage standing wave ratio have also been reported in order to analyze the performance of the combiner.

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Photonics Letters of Poland - A Publication of the Photonics Society of Poland
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