Department of Electronic Chemistry; Tokyo Institute of Technology; Yokohama Kanagawa 226-8503 Japan
RIKEN; 2-1 Hirosawa Wako Saitama 351-0198 Japan
Materials and Structures Laboratory; Tokyo Institute of Technology; Nagatsuta 4259 Yokohama 226-8503 Japan
PRESTO; Japan Science and Technology Agency; Kawaguchi 332-0012 Japan
CREST; Japan Science and Technology Agency; Kawaguchi 332-0012 Japan
Earth-Life Science Institute; Tokyo Institute of Technology; Meguro Tokyo 152-8551 Japan
Si / SiO 2核壳纳米粒子的可见电磁共振受热氧化控制。包含硅和二氧化硅的核-壳纳米粒子是通过激光烧蚀和热氧化制备的。实验证明，在颗粒中激发的磁偶极子和电偶极子的共振波长在可见光区域内通过热氧化来改变芯径，从而控制了共振波长。
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Controlling the Visible Electromagnetic Resonances of Si/SiO2 Dielectric Core–Shell Nanoparticles by Thermal Oxidation
The visible electromagnetic resonances of Si/SiO2 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.
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