Thermo-plasmonic effects on E7 nematic liquid crystal. (24th May 2017)

• Record Type: Journal Article
• Authors: Palermo, Giovanna; Cataldi, Ugo; Pezzi, Luigia; Bürgi, Thomas; Umeton, Cesare; De Luca, Antonio
• Is Part Of: Molecular crystals and liquid crystals. Volume 649(2017)
• Page Start: 45
• Page End: 49
• Publication Date: 2017-05-24
• Subjects: Thermo-plasmonics -- liquid crystals -- heat transfer -- gold nanoparticles -- photo-heating; Molecular crystals -- Periodicals; Liquid crystals -- Periodicals; Liquid crystals; Molecular crystals; Periodicals; 548
• DOI: 10.1080/15421406.2017.1303901
• Languages: English
• ISSNs: 1542-1406

Abstract

ABSTRACT: The photo-induced heating from a layer of uniformly distributed gold nanoparticles has been characterized to investigate the impact of a direct interaction of the metallic nanostructures with a drop of E7 nematic liquid crystal. A double effect is obtained: an increase of the photo-induced heating due to a change in the refractive index of the medium surrounding the nanoparticles (from air to E7) and a new way of exploiting this heating to induce a phase transition of the E7 NLC (from anisotropic to isotropic phase), with a significant decrease of the necessary energy density in the case of an impinging green radiation.