About the Journal :
Experimental and Theoretical NANOTECHNOLOGY (ETN) abbreviated as Exp. Theo. NANOTECHNOLOGY is a multidisciplinary peer-reviewed and open access journal. It includes specialized research papers, short communications, reviews and selected conference papers in special issues on the characterization, synthesis, processing, structure and properties of different principles and applications of nanotechnology with focus on advantageous achievements and applications for the specialists in engineering, chemistry, physics, materials science and medicine. ETN covers and publishes all aspects of fundamental and applied researches of experimental and theoretical nanoscale technology dealing with materials synthesis, processing, nanofabrication, nanoprobes, spectroscopy, properties, biological systems, nanostructures, nanoelectronics, nano-optics, nano-mechanics, nanodevices, nanobiotechnology, nanomedicine, nanotoxicology within the scope of the journal. ETN aims to acquire the recent and outstanding researches for the benefit of the human being.
We investigate the effect of a propagation of surface electromagnetic waves along a metallic surface covered by layered dielectric structures. The optical coupling of a wave incident to collective oscillations of electrons along an interface between a metal and a dielectric is governed by the thickness of metal and gap layers. The surface Plasmon excited by an electromagnetic wave with a central wavelength of ë=486 nm and using the optic finite-difference time-domain method (OptiFDTD). For the metal, in particular a frequency on their dielectric permittivity dependence and described by the Drude-Lorentz model and using the effective-index approach and an explicit expression for the propagation constant of long rang surface plasmon polaritons (LR-SPPs) obtained for moderate metal widths.