Dispersion of surface plasmon-polaritons in active planar structures of metal-nanocomposites

摘要

The paper presents the results of numerical simulation of the dispersion properties of surface plasmon-polaritonsat the interface between an active composite medium based on metallic nanoparticles and a substrate of the same metalsin the visible wavelength range. It is shown that the amplification and dispersion properties of surface plasmon polaritonsin these structures can be varied within wide limits by varying the concentration of nanoparticles.