Presentations

We analyzed the transmission properties of two plasmonic waveguides crossing by using numerical simulations. The subwavelength width waveguides are composed of sodiumair-sodium. The crossing structure is composed by a compact cross-shaped resonant cavity with a four-fold symmetry. The results demonstrated the feasibility of using sodium as a low loss material for several applications for nanoplasmonic […]

The absorption of a multiband absorber based on a periodical plasmonic grating has been optimized. The optical and geometrical parameters of the plasmonic structure which is composed of germanium and gold are determined by an efficient genetic algorithm. The electromagnetic response of the absorber is numerically obtained by using the frequency domain finite element method. […]