That is to say that they embedded gold and sodium gadolinium fluoride nanoparticles doped with ytterbium and erbium ions into the lenses. These nanoparticles exert various effects on light, but the ...

Scientists have developed a new technique that significantly reduces the halo effect that is generated when using multifocal (contact and intra-ocular) lenses and looking at bright point sources in ...

Gold is best known for its shine and value, but in modern science it is also an important high-tech material. New research ...