Author/Authors :
Eftekharinia, B. tarbiat modares university - Department of Physics, تهران, ايران , Nabavi, S.H. tarbiat modares university - Department of Physics, تهران, ايران , Moshaii, A. tarbiat modares university - Department of Physics, تهران, ايران , Dabirian, A. sharif university of technology - Department of Physics, تهران, ايران
Abstract :
We propose an innovative design for metallic slit-groove nanostructure to increase the propagation intensity of a unidirectional Surface Plasmon Polariton (SPP) light beam. Our idea is based on the combination of the concept of unidirectional plasmonic wave propagation in a metallic slit-groove nanostructure and the well-known hybrid modes of a hybrid metal-dielectric waveguide. Our results demonstrate that the hybrid structure results in up to 5 times enhancement in the SPP beam intensity relative to the conventional design of slit-groove nanostructure. This new design of SPP based nano source can be applied in many applications including nano photonic devices.
Keywords :
Surface Plasmon Polariton (SPP) , Hybrid plasmonic waveguide , Metallic slit , groove nanostructure.
