arXiv subjects

M. Bahoura

Publications and source records attributed to M. Bahoura.

3 recordsLinked to original sources

arXiv2007

Compensation of loss in propagating surface plasmon polariton by gain in adjacent dielectric medium

We report the suppression of loss of surface plasmon polariton propagating at the interface between silver film and optically pumped polymer with dye. Large magnitude of the effect enables a variety of applications of "active" nanoplasmonics. The experimental study is accompanied by the development of the analytical description of the phenomenon and the solution of the controversy regarding the direction of the wavevector of a wave with a strong evanescent component in an active medium.

physics.optics↗

arXiv2006

Simple route to Nd:YAG transparent ceramics

We report on the fabrication and spectroscopic characterization of transparent Nd3+:YAG ceramic, a prospective material for future laser applications.

cond-mat.mtrl-sci↗

arXiv2005

Enhancement and suppression of surface plasmon resonance in Ag aggregate by optical gain and absorption in surrounding dielectric medium

We have observed the compensation of loss in metal by gain in interfacing dielectric in the mixture of aggregated silver nanoparticles and rhodamine 6G dye. The demonstrated six-fold enhancement of the Rayleigh scattering is the evidence of the increase of the quality factor of the surface plasmon (SP) resonance. The reported experimental observation paves the road to many practical applications of nanoplasmonics. We have also predicted and experimentally observed a suppression of the surface SP resonance in metallic nanoparticles embedded in a dielectric host with absorption.

physics.optics↗