Efficient plasmonic coupling between Er3Â +:(Ag/Au) in tellurite glasses

► Enhancement luminescence of Er3 + ions from Ag or Au nanoparticles. ► Modifying the oscillator strength resulting in blue/red-shift. ► The improved luminescence is a function of the size/composition nanoparticle. ► Is verifiedthe lifetime of these glasses decreases due to improved luminescence.