Premium
Controlling the Visible Electromagnetic Resonances of Si/SiO 2 Dielectric Core–Shell Nanoparticles by Thermal Oxidation
Author(s) -
Tsuchimoto Yuta,
Yano Takaaki,
Hada Masaki,
Nakamura Kazutaka G.,
Hayashi Tomohiro,
Hara Masahiko
Publication year - 2015
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201500884
Subject(s) - nanoparticle , silicon dioxide , silicon , dielectric , materials science , thermal oxidation , thermal , shell (structure) , excited state , core (optical fiber) , nanotechnology , visible spectrum , optoelectronics , atomic physics , physics , composite material , meteorology
The visible electromagnetic resonances of Si/SiO 2 core–shell nanoparticles are controlled by thermal oxidation. The core–shell nanoparticles comprising silicon and silicon dioxide are fabricated through laser ablation and thermal oxidation. The resonant wavelengths of magnetic and electric dipoles excited in the particles are experimentally demonstrated to be controlled in the visible region by the variation of the core diameter, through thermal oxidation.