Title of article :
Engineering colloidal photonic crystals with magnetic functionalities
Author/Authors :
Libaers، نويسنده , , Wim and Kolaric، نويسنده , , Branko and Vallée، نويسنده , , Renaud A.L. and Wong، نويسنده , , John E. and Wouters، نويسنده , , Jelle and Valev، نويسنده , , Ventsislav K. and Verbiest، نويسنده , , Thierry and Clays، نويسنده , , Koen، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Abstract :
An engineering approach towards combined photonic band gap properties and magnetic functionalities, based on independent nanoscale engineering of two different materials at different length scales, is conceptually presented, backed by simulations, and experimentally confirmed. Large (>200 nm) monodisperse nanospheres of transparent silica self-assemble into a photonic crystal with a visible band gap, which is retained upon infiltration of small (<20 nm) nanoparticles of magnetic iron oxide. Enhancing and tuning Faraday rotation in photonic crystals is demonstrated.
Keywords :
photonic crystals , Faraday rotation , Magnetic colloids , maghemite , superparamagnetic
Journal title :
Colloids and Surfaces A Physicochemical and Engineering Aspects
Journal title :
Colloids and Surfaces A Physicochemical and Engineering Aspects
