Nanoscale interaction between the metal and semiconductor in core shell nanoparticles (NPs) when light is incident to this nanostructure, causes exhibiting reinforced optical responses and enhanced optical tunability in core shell NPs. In this work, we investigate the geometry and electronic properties dependent optical properties of Au-SiO2 core shell NPs and Au NPs using boundary element method (BEM) by solving full Maxwell's equation. We find out that several important geometrical parameters such as shell thickness, core diameter, electronic properties of shell and surrounding environment affect the plasmon resonance wavelength, light scattering, absorption and extinction cross section of core shell NPs. We also investigate the effect of variation in size and surrounding refractive index on Au NPs. Surrounding refractive index dependence of Au NPs makes them suitable for plasmonic based sensors. We validate our BEM approach for spherical NPs with Mie theory.
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Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA
Guo, Zhanhu
Park, Sung
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机构:Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA
Park, Sung
Hahn, H. Thomas
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机构:Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA
Hahn, H. Thomas
Wei, Suying
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机构:Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA
Wei, Suying
Moldovan, Monica
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机构:Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA
Moldovan, Monica
Karki, Amar B.
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机构:Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA
Karki, Amar B.
Young, David P.
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机构:Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA
机构:
Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA
Guo, Zhanhu
Park, Sung
论文数: 0引用数: 0
h-index: 0
机构:Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA
Park, Sung
Hahn, H. Thomas
论文数: 0引用数: 0
h-index: 0
机构:Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA
Hahn, H. Thomas
Wei, Suying
论文数: 0引用数: 0
h-index: 0
机构:Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA
Wei, Suying
Moldovan, Monica
论文数: 0引用数: 0
h-index: 0
机构:Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA
Moldovan, Monica
Karki, Amar B.
论文数: 0引用数: 0
h-index: 0
机构:Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA
Karki, Amar B.
Young, David P.
论文数: 0引用数: 0
h-index: 0
机构:Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA