PROJECT TITLE :

Design and study of nano-plasmonic couplers using aluminium arsenide and alumina

ABSTRACT:

A theoretical study of nano-plasmonic couplers made using aluminium arsenide (AlAs) and alumina (Al2O3) is presented. The analysis has been done using the finite difference time domain technique. The dependence of coupling efficiency on the width of the air layer of silver–air–silver waveguide has been investigated to work out the optimal width of air. Coupling potency with the variation in input signal wavelength, reflection coefficient and come back loss have been calculated numerically in order to characterise the performance of AlAs and Al2O3 as nano-plasmonic couplers. The resonant peaks have conjointly been obtained for each AlAs and Al2O3. The couplers give appreciable performance at 1550 nm wavelength and have simple rectangular shape with no tapering that provides advantage within the fabrication process. It conjointly offers broadband operation.


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